The correct option for the following statement regarding the surgical knot is the option (c) Only i and ii. Below are the explanations of each statement.
i. The threads we loped around each other twice in the first throwThe first throw of the surgical knot involves loping the thread around each other twice.
ii. It tooked by placing square knots on lopIn this statement, it means that the knot is tied by placing a square knot on the loop.
iii. One end of the thread is held in one hand at all times leaving the other end and hand freeIn this statement, it is talking about the position of the thread when tying the surgical knot. One end of the thread is held in one hand at all times leaving the other end and hand free.Thus, the correct option is (c) Only i and ii.
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A patient has unilateral loss of tactile perception on the anterior part of
the tongue, unilateral failure of the masseter muscle to contract
when major dental caries are probed on the mandible on the same side.
The patient most likely has a lesion involving which of the following?
a. Chorda tympani
b. Trigeminal
c. Facial
d. Vagus
e. Hypoglossa
The patient's symptoms suggest a lesion involving the trigeminal nerve. Option B is the correct answer.
The trigeminal nerve is responsible for sensory perception in the face, including the anterior part of the tongue, and motor control of the muscles involved in chewing, such as the masseter muscle. The fact that the symptoms are localized to one side of the tongue and affect the masseter muscle on the same side suggests a unilateral lesion.
The other options (A. Chorda tympani, C. Facial, D. Vagus, E. Hypoglossal) are not directly associated with the specific symptoms described in the question. Therefore, the most likely explanation is a lesion involving the trigeminal nerve (Option B).
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When choosing an isotype control antibody for a flow cytometry experiment, which of the following does NOT need to match your antibody in your specific antibody stain? a. the host species of the antibody b. the isotype class c. the conjugated fluorochrome d. the epitope bound by the Fab region e. the dilution used in the staining cocktail
When choosing an isotype control antibody for a flow cytometry experiment, the epitope bound by the Fab region does NOT need to match your antibody in your specific antibody stain. The correct option is d.
Isotype controls are antibodies that bind to an irrelevant antigen or to a surface that is not expressed in the tested cells. In a flow cytometry experiment, isotype controls are utilized to help researchers differentiate between true and false positive staining. They also assist in determining the background level of the sample being analyzed.
The isotype control antibody should have all the properties of the primary antibody except for the specific binding to the target of interest. The host species, isotype class, conjugated fluorochrome, and dilution used in the staining cocktail must be matched with the primary antibody for effective results. The epitope bound by the Fab region, on the other hand, does not need to be matched. Hence, d is the correct option.
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Provide an example of the functions of each of the autonomic
(including sympathetic & Parasympathetic) and somatic nervous
systems.
The autonomic nervous system (ANS) and somatic nervous system (SNS) are the two main divisions of the peripheral nervous system. The ANS has two subdivisions: the sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS).
They are both responsible for controlling involuntary body functions, but they have distinct roles and effects on the body. The SNS is known as the "fight or flight" response, while the PNS is known as the "rest and digest" response. Here are some examples of the functions of each nervous system:Somatic nervous systemThe somatic nervous system is responsible for controlling voluntary muscle movements and receiving sensory information from the body's surface and special senses. Some examples of its functions include:
1. Walking and running: The somatic nervous system controls voluntary movements such as walking, running, and jumping.
2. Sensory input: The somatic nervous system receives sensory input from the body's surface and special senses, such as vision, hearing, taste, and smell.
3. Reflexes: The somatic nervous system is responsible for reflexes, which are automatic, involuntary responses to stimuli.
4. Conscious control: The somatic nervous system allows for conscious control over motor movements.
Autonomic nervous systemThe autonomic nervous system is responsible for controlling involuntary body functions such as heart rate, digestion, breathing, and blood pressure. It has two subdivisions: the sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS). Here are some examples of the functions of each subdivision:
1. Sympathetic nervous system: The SNS is responsible for the "fight or flight" response, which is activated during times of stress or danger. It increases heart rate, breathing rate, and blood pressure, and decreases digestion and salivation.
2. Parasympathetic nervous system: The PNS is responsible for the "rest and digest" response, which is activated during times of relaxation or rest. It decreases heart rate, breathing rate, and blood pressure, and increases digestion and salivation.
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The stotement that best describes Hyperosmolor Hyperglycemic Syndrome is
Select one a. A metobolic disordes of type DM chorocterized by metabolic ocio b. A metobolic disorder of type 2 DM occurring with younga.lt
c. A metobolic disordet of type 2 DM characterized by severe con d. A lite threatening disorder that requires tuid restriction
Hyperosmolar Hyperglycemic Syndrome (HHS) is a life-threatening disorder that requires fluid restriction. It is a metabolic disorder that is characterized by severe dehydration. Option d is the right answer. Hyperosmolar Hyperglycemic Syndrome (HHS) is a severe complication of type 2 diabetes mellitus (DM). It is characterized by extreme elevations in blood sugar levels and is caused by insufficient insulin levels in the body, which leads to hyperglycemia. As a result, glucose builds up in the bloodstream, leading to osmotic diuresis, dehydration, and electrolyte imbalances. This often leads to the onset of HHS.
Hyperosmolar Hyperglycemic Syndrome is characterized by extremely high blood glucose levels (hyperglycemia) and severe dehydration (osmolarity). HHS is often accompanied by other complications such as altered mental status, neurological symptoms, electrolyte imbalances, and organ dysfunction. Prompt medical intervention is necessary, including fluid replacement and insulin therapy, to manage the condition and prevent further complications. A metabolic disorder of type 2 DM characterized by severe complications.
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Match the following treatments to their definition:
1. A test that checks for problems with the electrical activity of the heart
2. Examination by X-ray of blood or lymph vessels, carried out after introduction of a radioopaque substance
3. Nuclear medicine test that calculates ejection fraction (how much blood the ventricle can eject with one contraction)
4. The action of listening to sounds from the heart, lungs, or other organs, typically with stethoscope
5. Procedure to convert an abnormally fast heart rate to normal rhythm using electricit or drugs
6. Surgical repair or unblocking of a blood vessel
7. A tissue graft or organ transplant from a donor of a different species from the recipient
8. An artificial device for stimulating the heart muscle and regulating its contractions
[Choose ]
a. pacemaker
b. cardiac catheterization
c. MUGA scan
d. autograft
e. SPECT scan
f. xenograft g. auscultation
h. angiography
i. angioplasty j. aneursymectomy k. electrocardiogram l. valvoplasty
m. CABG
n. cardioversion
The given treatments are matched below:
1. A test that checks for problems with the electrical activity of the heart: Electrocardiogram (ECG)
2. Examination by X-ray of blood or lymph vessels, carried out after introduction of a radioopaque substance: Angiography
3. Nuclear medicine test that calculates ejection fraction (how much blood the ventricle can eject with one contraction): MUGA scan
4. The action of listening to sounds from the heart, lungs, or other organs, typically with a stethoscope: Auscultation
5. Procedure to convert an abnormally fast heart rate to normal rhythm using electricity or drugs: Cardioversion
6. Surgical repair or unblocking of a blood vessel: Angioplasty
7. A tissue graft or organ transplant from a donor of a different species from the recipient: Xenograft
8. An artificial device for stimulating the heart muscle and regulating its contractions: Pacemaker
Therefore, the matching of the following treatments to their definition are as follows:
a. pacemaker - An artificial device for stimulating the heart muscle and regulating its contractions
b. cardiac catheterization - Examination by X-ray of blood or lymph vessels, carried out after the introduction of a radioopaque substance
c.MUGA scan - Nuclear medicine test that calculates ejection fraction (how much blood the ventricle can eject with one contraction)
d. autograft - A tissue graft or organ transplant from the donor of the same species as the recipiente. SPECT scan - Single Photon Emission Computed Tomography (SPECT) is a type of nuclear medicine imaging study that uses radioactive isotopes to produce three-dimensional images of the body
f.xenograft - A tissue graft or organ transplant from a donor of a different species from the recipient
g. auscultation - The action of listening to sounds from the heart, lungs, or other organs, typically with a stethoscope
h. angiography - Examination by X-ray of blood or lymph vessels, carried out after the introduction of a radioopaque substancei. angioplasty - Surgical repair or unblocking of a blood vessel
j.aneursymectomy - A surgical procedure to remove an aneurysm from an artery or the heartk. electrocardiogram - A test that checks for problems with the electrical activity of the heartl. valvoplasty - Surgical repair or replacement of a heart valvem. CABG - Coronary artery bypass grafting (CABG) is a surgical procedure that aims to improve blood flow to the heart.
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1. Describe the liver on gross inspection. 2. What type of the abnormal intracellular accumulation can be seen in the hepatic
cells?
3. What is the cause of this liver pathology?
4. What type of the abnormal intracellular accumulation can be found in the cardiomyocytes?
5. Describe histologic findings in the heart. Suggest selective staining for the verification of the process.
1. Describe the liver on gross inspection: On gross inspection, the liver is large and pale in colour. There is an accentuation of the lobular architecture, and the cut surface may appear like a coarse nutmeg.
Abnormal intracellular accumulation can take many forms. In the liver, two forms of intracellular accumulation are commonly seen: Steatosis and lipofuscin accumulation.
The cause of these pathological changes is dependent on the type of abnormal accumulation present. For example, steatosis can be caused by metabolic conditions such as obesity or diabetes, while lipofuscin accumulation is caused by oxidative stress from cellular aging.
Cardiomyocytes can accumulate lipofuscin as a result of oxidative stress caused by aging.
Describe histologic findings in the heart. Suggest selective staining for the verification of the process. In the heart, histologic findings that may be present include hypertrophy of the myocardium, interstitial fibrosis, and myocyte loss. To verify these processes, Masson's trichrome staining can be used to stain collagen blue, while cardiomyocytes are stained red with eosin.
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1. Draw the pathway that sperm travel from production (where is this?) to exiting the male body. What structures/glands contribute to the production of semen? You may present this as a flow chart or a more realistic drawing.
2. Draw a nephron, including the following structures: Loop of Henle, proximal convoluted tubule, distal convoluted tubule, glomerulus, glomerular capsule.
The sperm pathway from production to exiting the male body is as follows: Testes - Epididymis - Vas deferens - Ejaculatory duct - Urethra. The following structures/glands contribute to the production of semen: Seminal vesicles - Prostate gland - Bulbourethral gland.
The pathway of sperm can be presented as a flowchart or as a more realistic drawing. Here is a detailed explanation of the different structures/glands that contribute to the production of semen:
Testes: The testes are the male gonads that produce sperm and testosterone. Epididymis: The epididymis is a long, coiled tube that lies on the back of each testis.Vas deferens: The vas deferens is a muscular tube that transports sperm from the epididymis to the ejaculatory duct. Ejaculatory duct: The ejaculatory duct is a short, muscular tube that connects the vas deferens to the urethra. Urethra: The urethra is the tube that carries urine and semen out of the body. It is longer in males than in females and is divided into three parts: the prostatic urethra, the membranous urethra, and the spongy urethra.Seminal vesicles: The seminal vesicles are a pair of glands that secrete a fluid rich in fructose and other nutrients. This fluid makes up about 60% of semen volume and provides energy for sperm.Learn more about Bulbourethral gland
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Which carbon-to-hydrogen mass ratio is possible for another compound composed only of carbon and hydrogen? you may need to round your answer to three significant figures before evaluating your answer.
The carbon-to-hydrogen mass ratio for another compound composed only of carbon and hydrogen can vary. However, if we assume that the compound is hydrocarbon-based, the possible carbon-to-hydrogen mass ratios can be determined by considering the molecular formulas of different hydrocarbons.
1. Determine the molecular formula of the hydrocarbon compound. Let's assume it is CₓHᵧ, where x represents the number of carbon atoms and y represents the number of hydrogen atoms.
2. Calculate the molar mass of carbon (12.01 g/mol) and hydrogen (1.008 g/mol).
3. Calculate the total molar mass of the compound by multiplying the number of carbon atoms (x) by the molar mass of carbon and the number of hydrogen atoms (y) by the molar mass of hydrogen. The total molar mass is given by: (12.01 * x) + (1.008 * y) g/mol.
4. Calculate the carbon-to-hydrogen mass ratio by dividing the molar mass of carbon (12.01 * x) by the molar mass of hydrogen (1.008 * y): (12.01 * x) / (1.008 * y).
To round the answer to three significant figures, you would need to round the x and y values to three significant figures before calculating the ratio.
In summary, the carbon-to-hydrogen mass ratio for a compound composed only of carbon and hydrogen can vary depending on the molecular formula.
To calculate the ratio, determine the molar mass of carbon and hydrogen, calculate the total molar mass of the compound, and divide the molar mass of carbon by the molar mass of hydrogen. Remember to round your answer to three significant figures.
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Question 4 List the structures associated with urine formation and excretion in order. 9 Major calyx −
13 Urethra 5. Nephron loop (descending limb) 4. Nephron loop (ascending limb) 12_ Urinary bladder −
10 Renal pelvis -
1_- Glomerulus -
8 Minor calyx - 3 Proximal convoluted tubule -
6 Distal convoluted tubule _-
1_Collecting duct - 2 Glomerular capsule - 11_ Ureter
Glomerulus ,Glomerular capsule ,Proximal convoluted tubule, Nephron loop (ascending limb),Nephron loop (descending limb) ,Distal convoluted tubule ,Collecting duct, Minor calyx ,Major calyx ,Renal pelvis ,Ureter ,Urinary bladder ,Urethra
The process of urine formation and excretion involves various structures within the urinary system. Here is an explanation of each structure listed in the given order:
Glomerulus: The glomerulus is a network of capillaries located within the renal corpuscle of the nephron. It filters blood to initiate urine formation.
Glomerular capsule: Also known as Bowman's capsule, it surrounds the glomerulus and collects the filtrate from the blood.
Proximal convoluted tubule: It is the first segment of the renal tubule where reabsorption of water, glucose, amino acids, and other vital substances from the filtrate occurs.
Nephron loop (ascending limb): This part of the loop of Henle reabsorbs sodium and chloride ions from the filtrate.
Nephron loop (descending limb): It allows water to passively leave the filtrate, concentrating the urine.
Distal convoluted tubule: Located after the loop of Henle, it further reabsorbs water and regulates the reabsorption of electrolytes based on the body's needs.
Collecting duct: These tubules receive filtrate from multiple nephrons and carry it towards the renal pelvis.
Minor calyx: Several collecting ducts merge to form minor calyces, which collect urine from the papillary ducts within the renal pyramids.
Major calyx: Multiple minor calyces join to form major calyces, which serve as larger urine collection chambers.
Renal pelvis: It is the central funnel-shaped structure that collects urine from the major calyces and transports it to the ureter.
Ureter: These tubes carry urine from the kidneys to the urinary bladder through peristaltic contractions.
Urinary bladder: A muscular organ that stores urine until it is expelled during urination.
Urethra: The tube through which urine passes from the bladder out of the body during urination.
Together, these structures ensure the filtration, reabsorption, and excretion of waste products and excess substances, maintaining the balance of fluids and electrolytes in the body.
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Full Question: List the structures associated with urine formation and excretion in order. 9 Major calyx −13 Urethra 5. Nephron loop (descending limb) 4. Nephron loop (ascending limb) -12_ Urinary bladder −10 Renal pelvis -1_- Glomerulus -_- Minor calyx - 3 Proximal convoluted tubule -6 Distal convoluted tubule _-1_Collecting duct - Glomerular capsule - 11_ Ureter
Sequencing, after Electrophoresis is performed, yields the sequence of DNA that is complementary to that of the template molecule. True False
"Sequencing, after Electrophoresis is performed, yields the sequence of DNA that is complementary to that of the template molecule" is false as electrophoresis does not determine the DNA sequence.
After electrophoresis, the sequencing of DNA does not directly yield the complementary sequence of the template molecule. Electrophoresis is a technique used to separate DNA fragments based on their size or charge. It does not provide information about the actual sequence of the DNA.
To determine the sequence of DNA, various sequencing methods such as Sanger sequencing or next-generation sequencing (NGS) techniques like Illumina sequencing are employed. These methods involve specific biochemical reactions and detection methods to identify the sequence of nucleotides in the DNA molecule.
In summary, electrophoresis is a technique for separating DNA fragments but does not directly provide the complementary sequence of the template molecule. Specific sequencing methods are used to determine the DNA sequence.
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Systematically explain the functional significance of different
parts of the brain
The brain consists of the cerebral cortex, limbic system, basal ganglia, thalamus, brainstem, cerebellum, and corpus callosum, which collaboratively enable cognitive processes, emotional responses, motor control, sensory perception, and information integration.
Different parts of the brain are Cerebral Cortex, Limbic System, Basal Ganglia, Thalamus, Brainstem, Cerebellum, and Corpus Callosum.
The brain is a complex organ that consists of various parts, each with its own unique functions. Here is a systematic explanation of the functional significance of different parts of the brain:
Cerebral Cortex: The cerebral cortex is the outer layer of the brain and is responsible for higher cognitive functions such as thinking, reasoning, perception, and voluntary movement. It is divided into four lobes: frontal, parietal, temporal, and occipital. Each lobe has specific roles, for example:
Frontal lobe: It is involved in decision-making, problem-solving, and motor control.
Parietal lobe: It processes sensory information, spatial awareness, and perception.
Temporal lobe: It plays a role in memory, language processing, and auditory perception.
Occipital lobe: It is primarily responsible for visual processing.
Limbic System: The limbic system is a group of structures located deep within the brain and is involved in emotion, memory, and motivation.
Key components include the hippocampus (memory formation), amygdala (emotion and fear processing), and hypothalamus (regulation of basic drives like hunger, thirst, and sexual behavior).
Basal Ganglia: The basal ganglia are a group of structures involved in motor control, procedural learning, and habit formation. They help initiate and regulate voluntary movements and are also implicated in Parkinson's disease and other movement disorders.
Thalamus: The thalamus acts as a relay station for sensory information, directing signals to the appropriate areas of the cerebral cortex for processing. It is crucial for sensory perception, attention, and consciousness.
Brainstem: The brainstem is the oldest and most primitive part of the brain, responsible for vital functions necessary for survival, including regulating heartbeat, breathing, and maintaining basic levels of consciousness. It comprises the midbrain, pons, and medulla oblongata.
Cerebellum: The cerebellum is located at the back of the brain, below the cerebral cortex. It plays a critical role in coordinating and fine-tuning motor movements, maintaining balance and posture, and motor learning.
Corpus Callosum: The corpus callosum is a bundle of nerve fibers that connects the left and right hemispheres of the brain. It facilitates communication and information exchange between the two hemispheres, enabling integration of sensory and motor functions.
It's important to note that this is a simplified overview, and each brain region interacts with others to support complex cognitive and physiological processes.
The brain's functional significance arises from the intricate connections and interactions between these various parts, allowing for the integration of information, control of bodily functions, and the basis of our cognitive abilities.
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I just need my homework answers checked to make sure they are correct
Question 3 of 10 1.0 1.0 Points What is the difference between dietary fiber and amylose? A. amylose is a disaccharide, whereas dietary fiber is a monosaccharide B. amylose has alpha-glycosidic bonds, whereas dietary fiber has beta-glycosidic bonds C. amylose is a monosaccharide and dietary fiber is a polysaccharide D. amylose is not found in plant foods, whereas dietary fiber is abundant in plants
Correct option is C. amylose is a monosaccharide and a component of starch while Dietary fiber is a polysaccharide found in plant foods.
The main difference between dietary fiber and amylose is that dietary fiber is a polysaccharide, while amylose is a monosaccharide. Dietary fiber refers to a group of complex carbohydrates that are resistant to digestion in the human small intestine. It consists of various types of polysaccharides, such as cellulose, hemicellulose, and pectin, which are found in plant cell walls.
On the other hand, amylose is a type of starch, which is a polysaccharide made up of glucose molecules. It is one of the two main components of starch, the other being amylopectin.
In summary, Dietary fiber provides several health benefits, including promoting regular bowel movements, aiding in weight management, and reducing the risk of chronic diseases such as heart disease and type 2 diabetes. It adds bulk to the diet, absorbs water, and helps in maintaining a healthy digestive system. On the other hand, amylose is a source of energy in the form of starch. It is broken down by enzymes in the body into glucose molecules, which can be used as fuel by cells.
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7)Define Electronervogram:
8)Define Rheobase:
9)Functions of the blood include:
A.Protective functions
B. Regulatory functions
C.Distribution functions
10)Physiologieal variations of ESR(Erythrocyte sedimentation rate)
A. Age. ESR is less in infants and old people compared to young adults.
B. Sex. ESR is greater in females compared to males.
C.Menstruation. ESR is slightly raised during menstruation in females
D.Pregnancy. ESR is raised in pregnancy from 3rd month to parturition and returns to normal after 3 to 4 weeks of delivery.
11)Normal values of hemoglobin:
A. Men 14-18 g/dI
B.Women 12 to 16 p/dl
C. Newborn 27 g/di
D. Men 18 g/dl
E. Women 16 g/dl
12. Regulatory functions of the blood include:
A.Regulates body temperature by absorbing and distributing heat (e,g, heat loss via skin if hot; heat retention to brain and other vital organs via shunting)
B. Maintains body fluid pH by its many buffers.
C.Maintains adequate, body fluids volume.
D. Carries wastes from all cells to elimination sites(longs for CO2, Kidneys nitrogenous wastes).
E.Carries hormones (chemical signals) from endocrine organs to target tissues.
PLEASE GIVE THE DEFINITIONS Electronervogram and Rheobase AND SOLVE ALL MCQ QUESTIONS FROM 9 TO 12
Electronervogram (ENG): The Electronervogram (ENG) is a medical test used to assess nerve and muscle function by utilizing electrical current.
Rheobase: Rheobase refers to the minimum strength of a stimulus required to excite a specific nerve. It is measured in milliamperes and indicates the threshold for an action potential in the nerve.
Functions of blood include:
A. Protective functions: Blood plays a role in immune defense by carrying white blood cells and antibodies to fight against infections.
B. Regulatory functions: Blood helps regulate body temperature, fluid pH, fluid volume, and transports hormones to target tissues.
C. Distribution functions: Blood transports oxygen, nutrients, waste products, and hormones to various parts of the body.
Physiological variations of ESR (Erythrocyte sedimentation rate):
A. Age: The ESR may vary with age, with higher rates often seen in the elderly.
B. Sex: In some cases, ESR levels may differ between males and females.
C. Menstruation: ESR levels can fluctuate during menstruation.
D. Pregnancy: ESR levels may be elevated during pregnancy.
Normal values of hemoglobin:
A. Men: The normal range of hemoglobin for adult men is typically between 14-18 grams per deciliter (g/dL).
B. Women: The normal range of hemoglobin for adult women is usually between 12-16 g/dL.
Regulatory functions of the blood include:
A. Regulates body temperature by absorbing and distributing heat, such as dissipating heat through the skin when it's hot or retaining heat to vital organs when necessary.
B. Maintains body fluid pH through buffering systems.
C. Maintains adequate body fluid volume.
D. Carries waste products from cells to elimination sites, such as carbon dioxide to the lungs and nitrogenous wastes to the kidneys.
E. Carries hormones from endocrine organs to target tissues, facilitating communication within the body.
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Chapter 8: Orthopedics - Muscular System Orthopedics (Muscular System) - Build Medical Words sing all of the word parts below, build 20 orthopedic (muscular) words. a- ab- ad- -al al alg/o- -alis -ar asthen/o- -ation brachi/o- brady- cost/o- duct/o- duct/o- dys- e- electro- extens/o- fibr/o- -gram habilit/o- hyper- hyper- -ia -la -la -la -la -il in- inter- -ion -ion -ion -ion -itis -itis -kinesis kines/o- kines/o- muscul/o- muscul/o- my/o- my/o- myos/o- neur/o- -or poly- radi/o- re- skelet/o- synovo- tax/o- ten/o- vers/o- vers/o- my/o- my/o- 1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
Orthopedics is a medical specialty focused on the diagnosis and treatment of musculoskeletal disorders. Within orthopedics, the muscular system plays a crucial role in movement, stability, and overall function of the body. By combining the provided word parts, we can build various orthopedic (muscular) words.
1. Abduction: Movement of a limb away from the midline of the body.
2. Adhesion: Formation of fibrous tissue between muscles or between a muscle and adjacent structures.
3. Muscular: Relating to muscles or the muscular system.
4. Myalgia: Pain or discomfort in muscles.
5. Asthenia: Generalized weakness or lack of muscle strength.
6. Electrolysis: Use of electrical current to remove unwanted hair or tissue.
7. Extension: Straightening or lengthening of a joint.
8. Fibrillation: Rapid, uncoordinated contractions of muscle fibers.
9. Rehabilitation: Process of restoring function and strength after an injury or surgery.
10. Hyperextension: Excessive extension of a joint beyond its normal range.
11. Hypertonia: Increased muscle tone or tension.
12. Isokinetic: Exercise involving resistance through a full range of motion.
13. Myotomy: Surgical incision or division of a muscle.
14. Neurologist: Physician specializing in the diagnosis and treatment of nervous system disorders.
15. Polymyositis: Inflammatory disease affecting multiple muscles.
16. Radiology: Medical imaging using X-rays or other radiation.
17. Reskeletization: Reconstruction or restoration of the skeletal system.
These words illustrate various aspects of muscular function, pathology, and medical interventions within the field of orthopedics.
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1. In your opinion, how do you determine a timeline for return to play of an injured athlete? What factors are involved?
As an athletic trainer, one needs to follow a well-organized plan that has been specifically designed for that injured athlete.
This plan has to be based on a proper medical assessment and needs to take into consideration certain factors that include:
Location and extent of the injury Type of treatmentIntensity of treatmentIntensity of rehab The age and physical characteristics of the injured athlete Psychological readiness for return to play It are recommended that an injured athlete who has undergone treatment and has regained their strength, agility, and stamina should wait until they are cleared by their doctor or athletic trainer before they resume playing sports.
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QUESTION 17 Acetylcholine is released by all of these neurons, except O somatic motor neurons O all preganglionic neurons of the ANS O all sensory neurons O by the postganglionic parasympathetic neurons QUESTION 18 The effect of beta-blocker drugs (block beta-receptors) is to O decrease blood pressure O Increase blood sugar levels O increase blood pressure O decrease blood sugar levels
QUESTION 19 The secretions of the adrenal medulla act to supplement the effects of_____
Acetylcholine is released by all of these neurons except sensory neurons. Among the neurons, sensory neurons are not among the neurons that release acetylcholine.
These neurons receive information from sensory receptors throughout the body and convey this information to the spinal cord and brain for processing. The two types of sensory neurons are somatic and visceral sensory neurons.
Question 18:The effect of beta-blocker drugs (block beta-receptors) is to decrease blood pressure. Beta-blocker drugs block the effects of the hormone epinephrine (adrenaline), which causes the heart to beat faster and with more force. This reduces blood pressure.
Question 19:The secretions of the adrenal medulla act to supplement the effects of the sympathetic nervous system.
The sympathetic nervous system controls the body's "fight or flight" response, while the adrenal medulla secretes epinephrine (adrenaline) and norepinephrine (noradrenaline) to support this response by increasing the heart rate, blood pressure, and glucose levels in the bloodstream.
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High temperatures can seriously increase the riak of heat stroke. The maximum suggested temperature of the water in a hot tub is about 38ºC. (a) Indicate what can happen to a person who sits in a hot tub for an extended period. (b) Explain why public hot tubs can present a threat to health. What safety features should be in place?
(a) If a person sits in a hot tub for an extended period, there is a possibility of dehydration due to excessive sweating and loss of water from the body.
(b) Public hot tubs can present a threat to health as they can be a breeding ground for harmful bacteria and viruses that can cause infections.
If a person sits in a hot tub for an extended period, there is also a risk of heat stroke due to high temperatures, which can be serious. Heat stroke symptoms include confusion, dizziness, headache, muscle cramps, rapid heartbeat, and fainting. In severe cases, it can lead to organ damage and even death.
The harmful bacteria and viruses can cause infections to health e severe, particularly for people with weakened immune systems. The safety features that should be in place in public hot tubs include regular cleaning and disinfection of the tub, monitoring of the water temperature and chemical levels, and ensuring proper ventilation to reduce the risk of respiratory problems. It is also recommended to limit the maximum suggested temperature of the water in a hot tub to about 38ºC to reduce the risk of heat stroke.
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muscle origin insertion synergist(s) antagonist(s) action
Iliocostalis (lateral)
Omohyoid – superior belly
Omohyoid – inferior belly
Spinalis (medial)
Flexor hallucis longus
Semimembranosus
Semitendinosis
Zygomaticus minor
Vastus medialis
Longissimus (middle)
Splenius capitis
External oblique
Mentalis
The muscle origin, insertion, synergists, antagonists, and actions for the listed muscles .
Iliocostalis (lateral)
Origin: Iliac crest, sacrum, and lumbar spinous processes
Insertion: Angles of the lower ribs
Synergists: Longissimus and spinalis muscles
Antagonists: Rectus abdominis and external oblique muscles
Action: Extension and lateral flexion of the vertebral column
Omohyoid – superior belly
Origin: Intermediate tendon attached to the superior border of the scapula
Insertion: Inferior border of the hyoid bone
Synergists: Digastric and sternohyoid muscles
Antagonists: Sternocleidomastoid and stylohyoid muscles
Action: Depresses and retracts the hyoid bone
Omohyoid – inferior belly
Origin: Superior border of the scapula
Insertion: Intermediate tendon attached to the clavicle
Synergists: Sternohyoid and sternothyroid muscles
Antagonists: Trapezius and levator scapulae muscles
Action: Depresses and retracts the hyoid bone
Spinalis (medial)
Origin: Spinous processes of the upper thoracic and lower cervical vertebrae
Insertion: Spinous processes of the upper cervical vertebrae
Synergists: Longissimus and iliocostalis muscles
Antagonists: Rectus abdominis and external oblique muscles
Action: Extension and lateral flexion of the vertebral column
Flexor hallucis longus
Origin: Posterior fibula and interosseous membrane
Insertion: Base of the distal phalanx of the great toe
Synergists: Tibialis posterior and flexor digitorum longus muscles
Antagonists: Extensor hallucis longus and extensor digitorum longus muscles
Action: Flexion of the great toe
Semimembranosus
Origin: Ischial tuberosity
Insertion: Medial condyle of the tibia
Synergists: Semitendinosus and biceps femoris muscles
Antagonists: Quadriceps femoris muscles
Action: Flexion of the knee and extension of the hip
Semitendinosus
Origin: Ischial tuberosity
Insertion: Proximal part of the medial surface of the tibia
Synergists: Semimembranosus and biceps femoris muscles
Antagonists: Quadriceps femoris muscles
Action: Flexion of the knee and extension of the hip
Zygomaticus minor
Origin: Lateral infraorbital margin
Insertion: Upper lip
Synergists: Zygomaticus major and levator labii superioris muscles
Antagonists: Depressor anguli oris and depressor labii inferioris muscles
Action: Elevates the upper lip, contributing to smiling and facial expression
Vastus medialis
Origin: Linea aspera of the femur
Insertion: Medial aspect of the patella and tibial tuberosity
Synergists: Vastus lateralis, vastus intermedius, and rectus femoris muscles
Antagonists: Hamstring muscles (e.g., biceps femoris)
Action: Extension of the knee
Longissimus (middle)
Origin: Transverse processes of the thoracic and upper lumbar
Splenius capitis:
Origin: Nuchal ligament, spinous processes of C7-T6 vertebrae
Insertion: Mastoid process and lateral part of the superior nuchal line
Synergists: Semispinalis capitis and longissimus capitis muscles
Antagonists: Sternocleidomastoid and levator scapulae muscles
Action: Extension, lateral flexion, and rotation of the head
External oblique:
Origin: External surfaces of the lower eight ribs
Insertion: Linea alba, pubic tubercle, and anterior half of the iliac crest
Synergists: Internal oblique and transversus abdominis muscles
Antagonists: Erector spinae and quadratus lumborum muscles
Action: Bilateral contraction flexes the vertebral column and compresses the abdominal contents, while unilateral contraction produces ipsilateral lateral flexion and contralateral rotation of the trunk
Mentalis:
Origin: Incisive fossa of the mandible
Insertion: Skin of the chin
Synergists: Depressor labii inferioris and platysma muscles
Antagonists: Levator labii superioris and levator anguli oris muscles
Action: Elevates and wrinkles the skin of the chin, producing a pouting or wrinkling expression
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29. How is the respiratory system going to react if there is a significant decrease in CO2 of arterial blood? O causes breathing to increase and result in hypoventilation. O causes breathing to decrease pand result in hypoventilation O causes breathing to decrease and result in hyperventilation O causes breathing to increase and results in hyperventilation.
A significant decrease in CO2 of arterial blood will cause breathing to increase and result in hyperventilation. Here option D is the correct answer.
Hyperventilation is a breathing pattern in which you take rapid and deep breaths. When you exhale, you may exhale more air than you inhale. Hyperventilation may make you feel dizzy, weak, or numb. You may also feel a tingling sensation around your mouth or in your hands and feet.
Hyperventilation is caused by a decrease in the level of CO2 in your blood. If there is a significant decrease in the level of CO2 in your blood, the respiratory system responds by increasing the rate of breathing. This increases the amount of oxygen delivered to the lungs and bloodstream.
When this happens, the body attempts to restore the balance of CO2 and oxygen levels in the bloodstream, which is known as homeostasis. Therefore, a significant decrease in CO2 of arterial blood causes breathing to increase and results in hyperventilation. Therefore option D is the correct answer.
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Complete question:
How is the respiratory system going to react if there is a significant decrease in CO_2 of arterial blood?
A - causes breathing to increase and results in hypoventilation.
B - causes breathing to decrease and result in hypoventilation
C - causes breathing to decrease and results in hyperventilation
D - causes breathing to increase and results in hyperventilation.
When Y32 is expressed within a normal cell, what is true of its nucleotide binding site?
"The biosensor can bind both Mg2+-ATP and ADP with very high affinity (Km ∼ 1 μM). In the cytosol of a normal cell, the concentrations of ADP and Mg2+-ATP range in the hundreds of μM and approximately 1 mM, respectively. "
A. It is most likely to be occupied by ADP.
B. It is unlikely to be occupied by Mg2+-ATP.
C. It is unlikely to be occupied by Mg2+-ATP or ADP.
D. It is effectively always occupied by Mg2+-ATP or ADP
The true of its nucleotide binding site is option D. It is effectively always occupied by Mg2+-ATP or ADP
What is the nucleotide binding site?From the information above, it seems that Mg2+-ATP or ADP is most likely to fill up the nucleotide binding site of Y32 in a regular cell. In a regular cell, there are lots of ADP and Mg2+-ATP molecules floating around.
ADP is in the range of hundreds of tiny units (called μM), while Mg2+-ATP is around 1 larger unit (called mM). The biosensor likes both Mg2+-ATP and ADP a lot. Because of that, it makes sense to think that Y32 has one of these molecules sitting in its nucleotide binding site.
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Jimmy (an 18 year old male) began experiencing headaches and lightheadedness approximately 1 year ago. During the last 6 months he began having seizures, when describing the seizures to the doctor he noted that he saw "stars" before the seizure began and he had been seeing "stars" or flashes of light before getting headaches. Jimmy has been playing football since he started junior high. Approximately 2 years ago he was knocked out while playing and was diagnosed with a mild concussion. A recent MRI revealed increased blood flow to specific areas of the brain. The increased blood flow is correlated with increased neurological activity. Use this information to answer the following question.
1. Based on the symptoms provided, what area of the cerebral cortex is most likely receiving the increased blood flow. Explain your answer.
2. The MRI results and increased blood flow correlate with which of the following IPSP's or EPSPs. Explain your answer (be sure to identify what IPSP and EPSP stands for).
3. Explain how your answer to the above question affects the target neurons in the brain. Specifically, does it increase or decrease postsynaptic polarization, action potential generation, and overall neuronal activity of the affected area.
4. Describe two different physiological mechanisms that could be used to disrupt the electrical events at the neuronal junctions (note I am NOT asking for specific drugs, I want you to describe 2 different mechanisms that drugs could use to disrupt activity at the neuronal junction.
1. Based on the symptoms provided, the visual area of the cerebral cortex is most likely receiving the increased blood flow. The increased neurological activity and the flashes of light (stars) that Jimmy is seeing indicate that the activity is occurring in the visual cortex, which is the area responsible for processing visual information.
2. The increased blood flow correlates with EPSPs (Excitatory Postsynaptic Potentials). EPSPs are temporary depolarizations of postsynaptic membranes, making it easier for the neuron to fire an action potential. In other words, EPSPs increase the likelihood of the target neuron to generate an action potential.
3. The increased EPSPs generated by the increased blood flow in the visual cortex would increase the postsynaptic depolarization, enhance the generation of action potentials, and overall increase the neuronal activity of the affected area.
4. Two different physiological mechanisms that could be used to disrupt the electrical events at neuronal junctions are as follows: i) drugs that block voltage-gated ion channels, which can prevent the generation of action potentials and thus disrupt neuronal activity. ii) drugs that block neurotransmitter receptors, which prevent neurotransmitters from binding to postsynaptic receptors and generating EPSPs or IPSPs.
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PLEASE HELP ME ANSWER ALL OF THE FOLLOWING ASAP AND I WILL THUMBS UP YOUR RESPONSE!!!!! Which structure cannot be visualized in this anatomical model? Greater trochanter (B) Lesser trochanter Neck Head Which structure cannot be visualized in this anatomical model? Supraspinous fossa (B) Acromion (C) Spine of scapula (D) Subscapular fossa The fingers are palpating the A. Scaphoid B) Radius UIna D) 5 th metacarpal What region of the spine is this vertebra from? Cervical Thoracic Lumbar Sacral
The thoracic region provides stability to the spine and supports the upper body.
The structure that cannot be visualized in this anatomical model is Neck Head. The neck head is an area located in the proximal area of the femur bone. This region is the point of articulation between the thigh bone and the hip. The neck head has a pivotal role in the function of the hip joint. It connects the long bone of the thigh to the pelvis and supports the weight of the body.
The neck head is an area that is susceptible to injury, specifically in the elderly population who suffer from osteoporosis and arthritis. Injuries to this area can lead to hip fractures and impair mobility. The structure that cannot be visualized in this anatomical model is Supraspinous fossa.
The supraspinous fossa is a depression on the scapula that is located above the spine of the scapula. It is a small area where the supraspinatus muscle attaches. This muscle is essential for shoulder function, specifically for shoulder abduction. A tear in the supraspinatus muscle can lead to pain and a decrease in shoulder function.
The vertebra is from the Thoracic region of the spine. The thoracic spine is located between the cervical and lumbar regions and is made up of twelve vertebrae. This region is characterized by the presence of ribs that articulate with the vertebrae.
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QUESTION 10 Which of these statements will corroborate (confirm) what is known about molecular genetics and nucleic acids? A. The long interspersed elements of DNA are repetitive sequences that contribute to genetic variation in eukaryotic organisms B. Tandem repeat sequences are moderate repetitive DNA found in all living organisms. C. One of DNA sequences used as gonetic markers is the microsatellites that exist as dinucleotide or tri-nucleotide or tetra- nucleotide repeats D. Answers A, B, and C are the right answer choices for this question E. Answers A and C are the right answer choices for this question QUESTION 11 Which of the followilg statements is precisely correct true? A. Modification of messenger ribonucleic acid includes the 5-7-methylguanosine capping and 3".polyA taling. B. In eukaryotes, the 3'-polyA tailing is located upstream polyA signal in the messenger ribonucleic acid. C. In prokaryotes, the transcription and translation simultaneously occur before transcription finishes D. Answers A, B and C are the right answer choices for this question E. Answers A and are the right answer choices for this question
The statement that will corroborate what is known about molecular genetics and nucleic acids is: One of DNA sequences used as genetic markers is the microsatellites that exist as dinucleotide or tri-nucleotide or tetra- nucleotide repeats. The correct option is C.
Corroborate means to confirm or give support to a statement, theory, or finding. Molecular genetics is a branch of genetics that involves the structure and function of genes at a molecular level. Nucleic acids are large biomolecules essential for life. They include DNA and RNA, which are long chains of nucleotides that carry genetic information.
Dinucleotide, tri-nucleotide, or tetra-nucleotide repeats are microsatellites, which are short, tandemly repeated DNA sequences. They are used as genetic markers because they are highly polymorphic, meaning they vary in length and frequency among individuals. This variation is useful in genetic analysis because it can help to identify individuals, determine paternity, or track genetic disorders in families. The correct option is C.
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Question 8 1.5 pts Dr Dajer's patient survived after the treatment. He was very confident in his diagnosis that the patient may have inhaled the liquid contrast ma v Ultimately Dr. Dajer determined that he should not v have ordered the original CT scan < Previous
Dr. Dajer's patient survived after treatment. The incorrect order for the original CT scan was determined as the contrast agent was used to enhance the image quality.
In the given statement, Dr. Dajer's patient survived after the treatment. He was very confident in his diagnosis that the patient may have inhaled the liquid contrast. Ultimately Dr. Dajer determined that he should not have ordered the original CT scan.
The term 'Contrast' refers to a substance that radiologists utilize in imaging scans of the human body to improve the quality of the resulting images. It does this by increasing the contrast between two adjacent tissues that would otherwise appear similar.
A contrast agent is used in medical imaging to improve the visibility of internal bodily structures. Contrast-enhanced imaging can be performed by radiography, CT scan, MRI, or even ultrasound. On the other hand, CT (Computed tomography) imaging uses X-rays to generate highly-detailed images of internal structures, allowing physicians to diagnose medical conditions.
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Which of the following is not a characteristic of urine a. unsterile b. contains urochrome c. pH of 6 d. aromatic
Option C: pH of 6 is not a characteristic of urine, because urine is typically slightly acidic, with a pH range of 3.0 to 5.0.
Urine can range in color from pale yellow to amber, depending on factors such as hydration levels, diet, and certain medications or medical conditions. The pigment responsible for the yellow color of urine is called urochrome.
Water, waste materials, and different dissolved compounds make up the majority of urine. It has metabolic waste materials like urea, creatinine, and uric acid in it. It also contains various components that may be present based on a person's health and diet, including electrolytes like sodium, potassium, and chloride ions.
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Which of the following are functions of the skeletal system?
(select all that apply)
a) mineral storage
b) support for ears and nose
c) regulation of pH
d) hematopoiesis
e) protection of the brain and
The functions of the skeletal system are given below: a) Mineral storage) Hematopoiesis. e) Protection of the brain and other delicate organs.
1. The skeletal system is an organ system that gives shape, support, and movement to the body.
2. Bones act as a storage facility for minerals such as calcium and phosphorus.
4. Hematopoiesis: Bones contain bone marrow, which is where blood cells are made.
3. Protection of the brain and other delicate organs: The skeletal system protects vital organs such as the brain, heart, and lungs. The skull and rib cage, which are made of bone, protect the brain and lungs respectively.
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What composes the upper and lower respiratory tract?
How can infection in the oral cavity spread to the paranasal sinuses?
The upper respiratory tract (URT) consists of the nasal cavity, paranasal sinuses, nasopharynx, larynx, and oropharynx.
On the other hand, the lower respiratory tract (LRT) comprises the trachea, bronchi, bronchioles, alveoli, and lungs. Respiratory infection is a common and easily transmitted infectious disease that has the potential to spread from the oral cavity to the paranasal sinuses. An infection in the oral cavity can spread to the paranasal sinuses through the nasal cavity. This is because the nasal cavity, paranasal sinuses, and oral cavity are all interconnected.
Respiratory infections may spread from the oral cavity to the paranasal sinuses via the oropharynx. The oropharynx is the part of the throat that lies behind the mouth and contains the tonsils, which are often involved in respiratory infections. As a result, the tonsils may become infected and inflamed, leading to paranasal sinus infections. Hence, it's crucial to maintain good oral hygiene and take preventative measures against respiratory infections to avoid the spread of infectious diseases.
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19. How can Phylogenetic estimates be used to test legal issues
regarding the human-to-human transmission of viruses?
15. How would you test for evolutionary correlation between
traits?
Phylogenetic estimates can be used to test legal issues regarding the human-to-human transmission of viruses as it can identify the exact source and route of transmission.
This is possible through the analysis of the genetic relationship among the viruses that have been collected from infected people in different regions.Physicians and epidemiologists use phylogenetic trees to establish the origins of a particular virus outbreak and the route it may have taken. Phylogenetics is a scientific discipline that aids in the study of how organisms have evolved. Phylogenetics allows the relationships between species to be determined by examining the similarities and differences in their DNA sequences.
To do this, one would first construct a phylogenetic tree that represents the evolutionary relationships between the different species. Then, one would use statistical methods to test whether there is a significant correlation between body size and brain size across different branches of the tree. If there is a significant correlation, this would suggest that there has been an evolutionary relationship between these traits.
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Using diagrams and accompanying text, explain the length-tension relationship. Include a plot of tension versus length and diagrams portraying the spatial relationship between actin and myosin in each section of the graph.
The length-tension relationship describes the relationship between the length of a muscle fiber and the amount of tension or force it can generate when stimulated to contract.
When a muscle fiber is at its optimal length, it can generate the maximum amount of tension. This optimal length is often referred to as the "resting length" or the length at which the muscle fiber has the greatest overlap between actin and myosin filaments. Actin and myosin are the two main proteins involved in muscle contraction. This can be represented in a tension versus length graph as a decline in tension at shorter lengths.
Conversely, at longer lengths, there is excessive overlap between actin and myosin filaments. This increased overlap results in interference between filaments, reducing the force generated during contraction. On a tension versus length graph, this is represented as a decline in tension at longer lengths .The length-tension relationship can be visualized through diagrams showing the spatial relationship between actin and myosin in different sections of the graph.
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chromosomes are lined up by spindle fibers. nuclear envelope forms around each set of dna. sister chromatids are pulled apart. centromeres move toward the poles of the cell.
Chromosomes line up by spindle fibers, the nuclear envelope forms around each set of DNA, sister chromatids are pulled apart, and centromeres move toward the poles of the cell during anaphase of mitosis.
Anaphase is the fourth phase of mitosis, which begins after the metaphase stage of cell division. During anaphase, chromosomes are pulled apart from the center of the cell to opposite poles by spindle fibers, resulting in sister chromatids. This stage is critical in separating chromosomes equally into daughter cells during cell division.
In this phase, the nuclear envelope reforms around the two groups of chromosomes that form at opposite poles of the cell. The mitotic spindle fibers, attached to the kinetochores of the chromosomes, are shortened, pulling apart the sister chromatids at the centromeres.
As the spindle fibers shorten and move the chromosomes towards the poles, the centromeres move towards the poles of the cell, which effectively pulls the sister chromatids to opposite sides of the cell. This stage marks the beginning of cytokinesis, which is when the cell membrane starts to form in the center of the cell to separate the two new daughter cells.
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