capillary

Definition / meaning of capillary

The smallest type of blood vessel. A capillary connects an arteriole (small artery) to a venule (small vein) to form a network of blood vessels in almost all parts of the body. The wall of a capillary is thin and leaky, and capillaries are involved in the exchange of fluids and gases between tissues and the blood.

Listed under:

Find More About 'capillary'

Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

Leave a Comment

*