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Question

Intercalated disc is present in___________________.

A
Striated muscle
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B
Smooth muscle
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C
Cardiac muscle
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D
Both A and C
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Solution

The correct option is C Cardiac muscle
Cardiac muscles consist of cylindrical, branched and uninucleate myocytes which are interconnected by intercalated discs. Intercalated discs are cross-bands that separate the opposite ends of myocytes. They help to hold the adjacent cells together and transmit the force of contraction from cell to cell. These discs allow diffusion of ions across the cells due to which muscle impulses travel rapidly from cell to cell. Therefore, option C is correct.
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