Stand and let your hands hang next to your sides for a few minutes. Then, look at the backs of your hands. Do you see any bumps on the surface on top of your veins? What might those be, and what are their function?​

Answers

Answer 1

When you stand and let your hands hang next to your sides for a few minutes, the bumps you see on your veins are the valves that help move blood to the larger veins.

What we know about vein valves.

There are valves located throughout the veins in our bodies. Most of these are located in points where smaller venules fuse with the larger veins.

Their function is to prevent blood from flowing back into the smaller veins, thus helping with the normal blood flow of the body.

Given that the veins in our bodies are littered with small valves to help the blood return to the heart correctly, we can confirm that these are the small bumps that we can see when letting our hands down for a few mins, as they fill with the blood they try not to let flow back into the smaller veins.

To learn more about veins visit:

https://brainly.com/question/9726668?referrer=searchResults


Related Questions

Reasoning: Write a three sentence statement that connects your evidence to your claim
about living organisms.

Answers

Answer:

Living organisms such as birds, animals, plants and microorganisms form the biotic component while land, air and water form the abiotic components. Biotic and abiotic components interact with each other resulting in transfer and replenishment of energy and nutrients.

Explanation:

Which statement best describes the significance of meiosis to sexual reproduction?
A. It produces haploid gametes, with half the number of chromosomes.
B. It creates organisms with better adaptability to the environment.
C. It allows all types of cells to produce two sets of identical chromosomes.
D. It produces up to eight diploid cells, each with the same number of chromosomes.

Answers

D because the diploid cells

In meiosis sexual reproduction produce haploid cells to produce gametes and chromosome number is reduced, hence option a is correct.

What is meiosis in sexual reproduction?

Gametes or sex cells, which are needed for sexual reproduction are created during meiosis.

It deactivates the sporophytic information while activating the genetic information for the production of sex cells.

Meiosis is a kind of cell division that results in the production of four gamete cells and a 50% reduction in the number of chromosomes in the parent cell. To develop egg and sperm cells for sexual reproduction, this procedure is necessary.

Therefore in sexually reproducing organisms meiosis is important to produce gametes, hence option a is correct.

Learn more about meiosis, here:

https://brainly.com/question/15065279

#SPJ6

the table show five of the most common chromosomal abnormalities that occur during reproduction. each abnormality cause significant alteration to the genome of the individual in which they occur. analyze the information in the table and determine the genotype of the abnormality that will result in a male having some female characteristics
a) down syndrome;xy
b)edwards syndrome;xx
c) turner syndrome;xyy
d)kilinefelter syndrome;xxy

Answers

Answer:

d)

Explanation:

The abnormality that will result in a male having some female characteristics is Klinefelter syndrome that is Option D is the correct answer. The Klinefelter syndrome, which has XXY genotype. This disease affects only the male

What are the different types of chromosomal abnormalities?

Chromosomal abnormalities are of different types; some are related to autosomes, and some are related to X and Y chromosomes. The down syndrome happens due to the trisomy in the 21st chromosome, which means instead of two chromosomes, there are three chromosomes.

In Patau syndrome, the trisomy is seen in the 13th pair of homologous chromosomes, and as a result, instead of two chromosomes, three are present. Klinefelter syndrome is associated with males who have an extra X chromosome. Infertility is observed as a result of this male display of female characteristics, such as behavioral changes. Turner syndrome is associated with females who have lost one X chromosome.

As a result, the correct answer is option D, which is Klinefelter syndrome, which is XXY.

Learn more about the chromosomal abnormalities here.

https://brainly.com/question/28666210

#SPJ2

Other Questions
what is conflict management PLS PLS PLS HELP THIS IS AN ALGEBRA 2 QUESTION is 0.5 or 17/34 greater At an online fruit dealer, it costs $39 for 75 cases of bananas. What is the unit price? A communications tower is supported by two wires, connected at the same point on the ground. One is attached to the tower at D and the long-on at C. The angle AD makes with the ground is 30 and the angle between the two wires is 10 . How much below the top of the tower is the shorter one attached? Can you guys check these :) Ill give brainleist :) what is the slope of the line 5x +2y = -15 the table show five of the most common chromosomal abnormalities that occur during reproduction. each abnormality cause significant alteration to the genome of the individual in which they occur. analyze the information in the table and determine the genotype of the abnormality that will result in a male having some female characteristics a) down syndrome;xy b)edwards syndrome;xx c) turner syndrome;xyy d)kilinefelter syndrome;xxy The drop down options are explicit and recursive. The work shown is a way to derive Tangent (x + y) = StartFraction tangent (x) + tangent (y) Over 1 minus tangent (x) tangent (y) EndFractionWhat expressions go in the derivation of the tangent sum identity in place of A, B, and C?Cos y cos x tan y sin x How did banking change in Europe from the 1700s to the 1800s?A.) The number of private banks increased.B.) The number of private banks decreased.C.) The number of government banks sharply increased.D.) The number of government banks sharply decreased. Describe the role of each of these men the Constitutional Convention George Washington Which statement best describes the significance of meiosis to sexual reproduction?A. It produces haploid gametes, with half the number of chromosomes.B. It creates organisms with better adaptability to the environment.C. It allows all types of cells to produce two sets of identical chromosomes.D. It produces up to eight diploid cells, each with the same number of chromosomes. Which physical modification allowed the Mountains and Basins region access to water?O Canalso Irrigation SystemO WellsO Dams what is the advantage of volcano What is the least common multiple (LCM) of 3 and 5? 1. Given: 3(m-2) + 14 = 38Prove: m= 10please help its a proof What are some challenges and triumphs of growing up? Sarah earns $9 an hour at a Morts Pizza Palace, working 20 hours per week. She spends $3 each week for snacks at work, but saves all her other earnings. How many hours must Sarah work to buy a new phone that costs $150? Please help!!! Explain and correct the error in this calculation.