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Capillary
01
毛细管
(anatomy) any of the small and thin-walled branching blood vessels that connect the arterioles and venules
What is a "capillary"?
A capillary is the smallest blood vessel in the human body, consisting of a single layer of endothelial cells. Capillaries connect arteries and veins, facilitating the exchange of oxygen, nutrients, and waste products between the bloodstream and surrounding tissues. They play a crucial role in delivering essential substances to cells and removing metabolic waste. Capillaries have a large surface area due to their small size and extensive network, ensuring efficient exchange and supporting the proper functioning of every cell in the body.
02
毛细管
a tube of small internal diameter; holds liquid by capillary action
capillary
01
of, relating, or resembling a strand of hair
02
very thin, especially regarding internal width
例子
The vascular system includes arteries, veins, and capillaries, which transport blood throughout the body.
