What Are Capillaries?

Capillaries are defined as the tiny blood vessels which are situated between the arteries and veins. The function of the capillaries is to distribute blood which is rich in oxygen to all the cells of the body.

The capillaries connect the arteries to the veins. Apart from oxygen-rich bloody, they also supply oxygen and essential nutrients to the tissues in the body at a cellular level. They are shaped like hair and are of a similar thickness as hair as well. Some of these vessels, in fact, do carry oxygen and nutrients to the hair growth matrix as well. The tiny cells are arranged in an intricate mesh-like network. They transport oxygen into the bloodstream.

Capillaries are also defined as the minute spaces, cracks or pores in the surfaces of rocks. It is through these tiny spaces that hydrocarbon fluids move in response to the forces of nature. They let the red blood cells move in a single file.

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