A precapillary sphincter is a cuff of smooth muscle that regulates the flow of blood into the capillaries.

Name: A precapillary sphincter is a cuff of smooth muscle that regulates the flow of blood into the capillaries.
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Quizplus · Accepted Answer

A precapillary sphincter is indeed a band of smooth muscle that controls blood flow into the capillaries by contracting or relaxing, thus regulating blood flow based on the body's needs.

A Precapillary Sphincter Is a Cuff of Smooth Muscle That