Question

question 1 (1 point) saved
the muscular layer of the heart is called the
myocardium
visceral pericardium
endocardium
epicardium

Explanation:

The myocardium is the muscular middle - layer of the heart, responsible for its contractions. The visceral pericardium is part of the outer covering, the endocardium is the inner lining, and the epicardium is another name for the visceral pericardium.

Answer:

A. myocardium