KAYLA11091 KAYLA11091

12-02-2020
Biology

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Which layer of the heart wall contracts and is composed primarily of cardiac muscle tissue?

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Glamourboy005 Glamourboy005

12-02-2020

Answer:Myocardium

Explanation: Myocardium is the middle layer of the heart wall. It is also the muscle tissue of the heart.

Myocardium is the thickest layer of the heart wall. It is madeup of cardiac muscle cells. These muscle cells possess contracting capability like other muscle cells.

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