Question

What do capillaries do

Answer 1

Capillaries are the smallest blood vessels in the body. They allow water, oxygen, carbon dioxide, and other nutrient and waste substances to exchange between blood and surrounding tissues. Read on to learn more about capillaries, and what they do in your body.

Answer 2

A capillary is an extremely small blood vessel that is located within the tissues of our bodies.
Capillaries transports blood from arteries to veins.
They also play an important role when it comes to microcirculation.
Hope this helps ;p