A tiny blood vessel that allows the exchange of gases, nutrients, and waste products. Capillary. Capillaries are the smallest blood vessels in the body where oxygen and nutrients are exchanged for waste with cells.
Capillary: A tiny blood vessel that allows the exchange of gases, nutrients, and waste products. Capillary. Capillaries are the smallest blood vessels in the body where oxygen and nutrients are exchanged for waste with cells.
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