Blood flow through a capillary is controlled by a precapillary sphincter,which opens or closes due to the requirements of the cells the capillary supplies.

Name: Blood flow through a capillary is controlled by a precapillary sphincter,which opens or closes due to the requirements of the cells the capillary supplies.
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Quizplus · Accepted Answer

This is true as the precapillary sphincter controls blood flow by regulating the opening and closing of the capillary bed to meet the metabolic demands of the tissue.

Blood Flow Through a Capillary Is Controlled by a Precapillary