Smooth muscle cells called precapillary sphincters guard the entrances to capillaries and determine the amount of blood that will flow into each capillary.

Name: Smooth muscle cells called precapillary sphincters guard the entrances to capillaries and determine the amount of blood that will flow into each capillary.
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Question

Quizplus · Accepted Answer

Precapillary sphincters are indeed smooth muscle cells that control the blood flow into capillary beds by constricting or relaxing, which determines the blood supply to the tissues.

Smooth Muscle Cells Called Precapillary Sphincters Guard the Entrances to Capillaries