When the left atrium relaxes, blood is prevented from flowing backward into it by the _______ valve.
A) mitral
B) semilunar
C) tricuspid
D) aortic

Question

Quizplus · Accepted Answer

The mitral valve, also known as the bicuspid valve, is located between the left atrium and left ventricle. When the left atrium relaxes, the mitral valve prevents blood from flowing back into the left atrium.

When the Left Atrium Relaxes, Blood Is Prevented from Flowing