Which layer of the heart is responsible for contracting to pump blood?
A)endocardium
B)epicardium
C)pericardium
D)myocardium

Question

Quizplus · Accepted Answer

The myocardium is the muscular layer of the heart and is responsible for contracting to pump blood throughout the body. The endocardium is the inner lining of the heart, the epicardium is the outer layer of the heart, and the pericardium is a protective sac around the heart.

Which Layer of the Heart Is Responsible for Contracting to Pump