The muscle layer of the heart is the pericardium.

PULMONARY PHYSIOLOGY

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	True
B	False
C	Either A or B
D	None of the above

Explanation:

Detailed explanation-1: -The answer is false. The myocardium, not the endocardium, is the contracting muscle layer of the heart. The myocardium is the thick muscular layer of the heart. It is the predominant layer of the heart wall that allows the organ to contract.

Detailed explanation-2: -The pericardium is the fibrous sac that surrounds the heart. It can be divided into three layers, the fibrous pericardium, the parietal pericardium, and the visceral pericardium.

Detailed explanation-3: -A double-layer, fluid-filled sac known as the pericardium surrounds the heart. The two layers of the pericardium are called the outer fibrous/parietal pericardium and the inner serous/visceral pericardium.

There is 1 question to complete.