Question

i) Name the largest artery in the human heart.
ii) Why do you think arteries have thick walls?
iii) Write any one difference between arteries and veins.
iv) Do you agree that the blood collected from the body parts need
to reach heart for circulation ? Mention your reasons.​

Answer 1

Answer:

1. aorta

The largest artery is the aorta, the main high-pressure pipeline connected to the heart's left ventricle. The aorta branches into a network of smaller arteries that extend throughout the body. The arteries' smaller branches are called arterioles and capillaries.

2. Arteries and arterioles have relatively thick muscular walls because blood pressure in them is high and because they must adjust their diameter to maintain blood pressure and to control blood flow.

3. One of the major differences between arteries and veins is that the arteries carry oxygenated blood to all body parts, whereas veins carry the deoxygenated blood to the heart with the exception of pulmonary arteries and veins.

4. yes, because blood which is collected from body goes to heart for pumping purpose.