Precapillary sphincters will
A) control blood flow into the true capillaries.
B) cause blood to flow directly from the metarteriole into the postcapillary venule.
C) open when the tissue needs nutrients.
D) close when the tissue's needs have been met.
E) All of the answers are correct.

Question

Quizplus · Accepted Answer

Precapillary sphincters regulate blood flow into capillaries, opening when tissues need nutrients and closing when needs are met, allowing blood to bypass capillaries via metarterioles.

Precapillary Sphincters Will