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.
Solution
The thick middle layer of the heart, composed of cardiac muscle, is the myocardium.
Explanation:
- Myocardium: This is the muscular middle layer of the heart wall, responsible for the heart's pumping action.
- Endocardium: This is the inner lining of the heart, which does not contain muscle tissue.
- Chordae Tendineae: These are tendons that connect the heart's valves to the heart muscles; they are not a layer of the heart.
- Epicardium: This is the outer layer of the heart, also not muscular tissue.
In conclusion, the correct answer to the question is myocardium.
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