Question

Do capillaries have valves?

Answer 1

Capillaries:

1. They are the smallest kind of blood vessel, which connect arteries with the veins.
2. The main function of capillaries is to exchange the substances between the tissues and blood cells.
3. A tubular network present within the body helps the blood to flow from the heart to all the living cells of the body and then back to the heart are blood vessels.
4. Arteries carry oxygen-rich blood away from the heart, they comprise thick walls and a muscular layer, which keeps the blood moving.
5. Veins carry impure or deoxygenated blood from the body parts to the heart, these are situated close to the skin.
6. Capillaries do not possess any kind of valves, the capillaries comprise just a solitary layer of endothelial cells.
7. Of the blood vessels, valves are only present in the veins, which prevents the backflow of blood and ensures that the flow of blood only takes place in one direction.