Blood Flow Through a Capillary Bed is Regulated by Precapillary

Question

Blood flow through a capillary bed is regulated by precapillary sphincters.

Accepted Answer

Precapillary sphincters are small ring-like muscles that control blood flow through a capillary bed. They can constrict and relax in response to various stimuli, such as changes in blood pressure or tissue oxygen levels, to regulate the amount of blood flow into the capillaries.