Most of the middle layer in the heart wall is composed of
A)cardiac muscle cells.
B)chondrocytes.
C)epitheliocytes.
D)fibrocytes.
E)smooth muscle cells.

Name: Most of the middle layer in the heart wall is composed of A)cardiac muscle cells. B)chondrocytes. C)epitheliocytes. D)fibrocytes. E)smooth muscle cells.
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Question

Quizplus · Accepted Answer

The middle layer of the heart wall is the myocardium, which is mostly made up of cardiac muscle cells. These cells work together to contract and pump blood out of the heart.

Most of the Middle Layer in the Heart Wall Is