Asked by Daniella Hollies on Jun 29, 2024

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The major portion of the heart is the myocardium, made up mainly of cardiac muscle.

Myocardium

The muscular tissue of the heart responsible for its contraction and relaxation, facilitating blood pumping throughout the body.

Cardiac Muscle

Striated, involuntary muscle tissue found only in the heart.

  • Comprehend the fundamental architecture and operation of the cardiovascular system.
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Christina WiebelJul 02, 2024
Final Answer :
True
Explanation :
The myocardium is the thick, muscular middle layer of the heart wall, made up mainly of cardiac muscle.