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The thick middle layer of the heart, composed of cardiac muscle, is theMultiple Choicemyocardium.endocardium.chordae tendineae.epicardium.

Question

The thick middle layer of the heart, composed of cardiac muscle, is the

  • myocadium.
  • endocardium.
  • chordae tendineae.
  • epicardium.
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Solution

The thick middle layer of the heart, composed of cardiac muscle, is the myocardium.

Explanation:

  1. Myocardium: This is the muscular middle layer of the heart wall, responsible for the heart's pumping action.
  2. Endocardium: This is the inner lining of the heart, which does not contain muscle tissue.
  3. Chordae Tendineae: These are tendons that connect the heart's valves to the heart muscles; they are not a layer of the heart.
  4. Epicardium: This is the outer layer of the heart, also not muscular tissue.

In conclusion, the correct answer to the question is myocardium.

This problem has been solved

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