Answers
Answer:
The question is lacking the options, below is the completely stated question and options:
This is the correct path of an electrical excitation from the pacemaker to a cardiocyte in the left ventricle (LV).
A. sinoatrial (SA) node → atrioventricular (AV) node → atrioventricular (AV) bundle → Purkinje fibers → cardiocyte in LV
B. atrioventricular (AV) node → sinoatrial (SA) node → atrioventricular (AV) bundle → Purkinje fibers → cardiocyte in LV
C. sinoatrial (SA) node → atrioventricular (AV) bundle → atrioventricular (AV) node → Purkinje fibers → cardiocyte in LV
D. atrioventricular (AV) node → Purkinje fibers → atrioventricular (AV) bundle → sinoatrial (SA) node → cardiocyte in LV
E. sinoatrial (SA) node → atrioventricular (AV) node → Purkinje fibers → atrioventricular (AV) bundle → cardiocyte in LV
Answer:
The correct answer is:
sinoatrial (SA) node → atrioventricular (AV) node → atrioventricular (AV) bundle → Purkinje fibers → cardiocyte in LV (A.)
Explanation:
The electrical impulse conduction system of the heart refers to the pathways through which electrical signals pass, to cause excitation of specific paths of the heart, leading to depolarization, which in turn leads to contraction and relaxation of the heart. The correct excitation pathway is as follows:
1. Normal excitation originates in the sinoatrial (SA) node, from which depolarization spreads throughout the atria, causing impulses (excitation) to spread from the SA node to the atria. It is believed that this depolarization spreads to the atrial cells through adjacent myocardial cells and myofibrils.
2. Next, the depolarization from the atria reaches the atrioventricular (AV) node, causing excitation of the AV node. The AV node is located on the floor of the right ventricle, close to the interventricular septum. The excitation leaves this site by two pathways; the fast and slow pathways which vary based on the time of transmission of impulses to the next phase.
3. Next, from the AV node, the excitation is passed to the two branches of the bundle of His, which form a network of fibers known as purkinje fibers, from where excitation passes to the apical region of the left and right ventricles causing depolarization of the ventricular myocardium.
Attached to this answer is a picture to show what the pathway looks like.
The correct path of an electrical excitation from the pacemaker to a cardiomyocyte is:
sinoatrial (SA) node → atrioventricular (AV) node → atrioventricular (AV) bundle → Subendothelial conducting network → cardiomyocyte in LV.
The heart is a cone-shaped hollow muscular organ that possesses the property of generating its own electrical impulses or excitations.
It is divided into four(4) chambers namely the right ventricle, left ventricle, right atrium and left atrium.
The correct path of an electrical excitation is from:
The pacemaker: This is also called the sinoatrial (SA) node. It generates the electrical excitations.Atrioventricular (AV) node: The electrical excitation initiated by SA node is then transmitted to AV node. This transmits the signal from atria to ventricles.Atrioventricular (AV) bundle: These are specialised fibres that originate from the AV node. They are the bundle that divides to form the right and left bundle branches.Subendothelial conducting network: This is also called the Purkinje fibres which is formed within the ventricular myocardium.Cardiomyocyte of the left ventricle: The cardiomyocytes are set of cells that generates contractile force in the heart. These are located at the left ventricle.Therefore, the correct path of an electrical excitation from the pacemaker to a cardiomyocyte is:
sinoatrial (SA) node → atrioventricular (AV) node → atrioventricular (AV) bundle → Subendothelial conducting network → cardiomyocyte in LV.
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Answer:
retailer.
Explanation:
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Which of the following statements comparing elite sprinters to average sprinters is correct? Elite sprinters...
Question 6 options:
reposition the legs during flight only slightly faster than average sprinters
hit the ground harder than average sprinters
apply GRF faster than average sprinters
All of the above are correct
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Answer:
reposition the legs during flight only slightly faster than average sprinters
Explanation:
The main difference between elite sprinters and average sprinters is the ability of elite sprinters to make longer, more impactful strides. This allows them to have a greater boost.
This boost is a result of the muscle fibers in your legs, which allow them to make strides that have little contact with the ground, but propel them forward faster than average sprinters. In short, elite sprinters are able to reposition their legs during flight just a little faster than the average sprinter.
A nurse wants to become part of a Disaster Medical Assistance Team (DMAT) but is concerned about maintaining licensure in several different states. What statement by the nursing supervisor best addresses these concerns?
Answers
Answer: a. "Deployed DMAT providers are federal employees, so their licenses are good in all 50 states."
Explanation:
Disaster Medical Assistance Teams are teams consisting of professionals and para-professionals in the medical profession who are called upon during matters of National Emergency when medical personnel are needed to respond rapidly to save lives. They therefore deal with events such as terrorist attacks, natural or man-made disasters, disease outbreaks and the like.
They fall under the National Disaster Medical System which operates at a Federal level. As such, DMAT teams are by extension, Federal employees who are licensed to provide help in every state of the Republic so the nurse does not to be concerned about maintaining licensure in several different states.
Kevin has a BMI of 28.5. How many calories should he eliminate from his diet every day to achieve weight loss? a. 600 calories b. 400 calories c. 100 calories d. 200 calories e. 300 calories
Answers
Answer:
A
Explanation:
A BMI of 28.5 for a male shows that he is overweight. Cutting down calories significantly can promote weight loss by 1-2 pounds each week.
Kevin has a BMI of 28.5.600 calories should he eliminate from his diet every day to achieve weight loss.
What is BMI ?Body mass index (BMI) can be define as the calculation that is used in healthcare settings which is an indirect method to determine a person's body weight category.
BMI is a measurement can take the data of height, and weight to produce a calculation and this calculation determine the relationship between weight and height.
The reason BMI is used for the correlation between being overweight and having certain health problems, Coronary heart disease, Hypertension, Osteoarthritis, Sleep apnea and respiratory problems
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When evaluating research, what factors should be considered? Why are these factors important? Provide some examples to illustrate the importance of each factor.
Answers
Answer:
l
Explanation:
Traditionally, the term _______ was applied to a vehicle with no permanent roof covering or side windows, but today that name is most often used to describe any convertible sports car.
Group of answer choices
Convertible
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Sedan
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a. true
b. false
Answers
Answer:
A. True
Explanation:
Morbidity involves the condition of having a disease while mortality is the condition of being deceased(dead).
For a particular disease at a specific time period, morbidity rates should always be equal or greater than mortality rate. This will ensure all the species affected by the disease aren’t wiped out in an instant as every organisms have different roles to play in the ecosystem.
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which medicine we drink oreat
1. fevadol
2. adol
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1.) Fevadol is the medicine we drink or eat
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Answer:
5 ml of oral suspension contains 100 mg of ibuprofen.
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Explanation:
im sorry i tried my best t figure it out and this is the best i could come up with, hope this helps
Một bệnh nhân nhi bị sốt không rõ nguyên nhân chúng ta dùng thuốc hạ sốt là aspirin được không và giải thích?
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Answer:
Your doctor will most likely treat your family.
Explanation:
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Answer:
by hyperinflation of lungs
Explanation:
Asthma is a disease of the lungs caused by inflammation and narrowing of the airways, thereby difficulting breath. Severe asthma disorders are associated with a significant decrease in the rate of maximal expiratory airflow and the reduction in the total volume expired, which is a value known as Forced Vital Capacity (FVC). In consequence, severe asthma events are correlated with the hyperinflation of the lungs and thus be a possible cause for the observed reduction in the FVC.
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Answers
Hi,
Basophils are granulocytes:
b) involved in the process of allergic reactions.
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Answers
What Mr. Sanchez must understand is that the fee is not a variable rate depending on the minutes that the consultation lasts, but on the contrary it is a fixed rate, that is:
an immutable value that responds to the use of the medical service that does not respond to the duration of it.In this way, nothing else matters than the result of the service, that is, the evacuation of the medical consultation. Thus, if this was done in 5, 10 or 60 minutes, only the result of it will be considered when establishing the rate.
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Answers
Answer: Embolic stroke
Explanation:
Embolic stroke is a form of stroke thqt occurs when a debris or a blood clot travels from one body part and then stays in the narrower brain artery, thereby blocking the flow of blood into the brain.
It should be noted that Atrial fibrillation, rheumatic heart disease, and valvular prosthetics are risk factors for embolic stroke.
Answer:
Embolic
Explanation:
They all potentiate the possibility of a blood clot to form
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Answers
Answer:
it can lead to headache and high blood pressure
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Answer:
Interventions to increase vaccination rates
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Provide a Clear Recommendation
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Explanation:
Using AMD technology, CDC scientists can find shifts in the DNA of circulating bacteria and viruses that help them evade vaccines. Through this work, we can develop more effective vaccines that shift with the changing microbes.
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Answers
Answer:
10-20%
Explanation:
Body weight, body fat, inflammatory proteins, and blood pressure drop when people cut back on their usual energy intake by 10 to 20 percent.
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Answer:
Both the sypathetic and the parasymphathetic nerves are strongly influenced by emotion (true)
Carafate 1 g p.o.
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Answer: Frequency
Explanation:
Without frequency ex once daily; every 4 hrs, etc. You don't know when to give the med
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Answers
Answer:
30 seconds and up to 2 minutes
Explanation:
Most adults should be able to hold their breath for between 30 and 1 minute if they are in relatively excellent physical condition and have healthy lungs. However, this can change depending on things like age, fitness level and general health.
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How are glands classified
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Answer:
(MI) Myocardial Infarction
Explanation:
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Answer:
Original Medicare
Explanation:
38. A pregnant client experiences persistent severe headaches and unexplained spells of dizziness during training, what should the trainer do?
Answers
Answer:
The coach should immediately stop physical activity and then take your blood pressure.
Explanation:
Many pregnant women tend to suffer from preclampcia, which is high blood pressure during pregnancy, which is very careful since it is risky for the mother and the baby.
High blood pressure in pregnant women can cause detachments of the placenta, interruption of pregnancy or spontaneous abortion.
It is very risky not to perceive these signs or said pathology, those pregnant women who are diagnosed with high blood pressure should do strict rest and monitoring.
Pregnant women bear the weight and physiological conditions of the baby and child. The trainer should immediately halt the training and check for the vitals of the women.
The trainer should do the following:
1. The trainer should immediately stop the training if the woman is experiencing dizziness and persistent severe headaches.
2. The symptoms could indicate the cause of preeclampsia, which is one of the most common complications of pregnancy. It has symptoms of high blood pressure, damage to the organ systems, and dizziness.
3. The trainer should immediately check for the vitals and measure the blood pressure of the pregnant women. The trainer should immediately contact the medical physician for monitoring and checking of the pregnant women.
Thus, the trainer should stop exercising and check the blood pressure.
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which of the following is typically most important to the adolescent when being examined
Answers
everything that apply
6x(8x-3)-2x(24x-6)=36
Answers
Answer:
x = -6
Explanation:
[tex]6x(8x - 3) - 2x(24x - 6) = 36[/tex]
➡️ [tex]48 {x}^{2} - 18x - 48 {x}^{2} + 12x = 36[/tex]
➡️ [tex] - 6x = 36[/tex]
➡️ [tex]x = - 6[/tex] ✅
Where was the first recognized firefighting force, known as the Familia Publica, organized?
Rome
London
New York
Philadelphia
Answers
Answer:Who were the Familia Publica? The first recognized firefighting force organized in ancient Rome.
Explanation: