What is the major determinant of blood flowing through a capillary bed?
A)arteriole flow
B)venule flow
C)heart rate
D)precapillary sphincter status
E)amount of salt in the blood

Question

What is the major determinant of blood flowing through a capillary bed? ​
A)arteriole flow
B)venule flow
C)heart rate
D)precapillary sphincter status
E)amount of salt in the blood

Quizplus · Accepted Answer

The precapillary sphincters regulate blood flow through a capillary bed by alternating between open and closed positions. When the precapillary sphincters are open, blood flows through the capillaries, and when they are closed, blood is diverted away from the capillaries. Therefore, the major determinant of blood flowing through a capillary bed is the status of the precapillary sphincters.

What Is the Major Determinant of Blood Flowing Through a Capillary