precapillary /pre·cap·il·lary/ (-kap´ĭ-lar″e)
1. located just to the arterial side of a capillary.
pre·cap·il·lar·y (pr -k p  -l r )adj. Preceding a capillary. Used of an arteriole or venule. |
precapillary
a vessel lacking complete coats, intermediate between an arteriole and a capillary.
precapillary sphincters
capillaries with a muscle layer which controls the flow of blood from the arterioles into the capillary bed.
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