What type of muscle tissue is found in the heart?
Answer
Cardiac Muscle
Cardiac muscle tissue, also called myocardium, is a specialized, involuntary, and striated muscle found only in the heart. It forms the thick middle layer of the heart wall and drives the rhythmic contractions that pump blood through the body. Its unique cellular connections enable the heart to act as a synchronized unit.
Key facts
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Location: Middle layer (myocardium) of the heart wall
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Cell type: Cardiomyocytes (branched, uninucleate muscle cells)
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Distinctive feature: Intercalated discs with gap junctions and desmosomes
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Control: Involuntary via intrinsic pacemaker and autonomic nervous system
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Primary function: Rhythmic contraction to pump blood