In studies of the human body, which of the following terms is used to describe heart muscle? Is it: a) myocardium b) epicardium c) pericardium d) tachycardium
option a. The muscle tissue of the coronary heart, termed the myocardium, make up the center and thickest layer of the coronary heart wall. This layer lies among the single-mobileular endocardium layer, which strains the internal chambers, and the outer epicardium, which makes up a part of the pericardium that surrounds and protects the coronary heart.
