The thin inner lining of the heart is the:
A) endocardium.
B) myocardium.
C) pericardium.
D) epicardium.

Question

Quizplus · Accepted Answer

The endocardium is the thin inner lining of the heart, composed of endothelial cells, and covers the heart valves and inner surface of the heart chambers. The myocardium is the middle layer of the heart, comprising the cardiac muscle tissue responsible for pumping blood. The pericardium is the sac that surrounds and protects the heart. The epicardium is the outer layer of the heart, also known as the visceral layer of the pericardium.

The Thin Inner Lining of the Heart Is The