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Question
Assertion :Cardiac muscle of the heart is striated and has intercalated disc between its fibres (cells) Reason: It provides quick, powerful and rhythmic contractions to the heart.
Assertion :Cardiac muscle of the heart is striated and has intercalated disc between its fibres (cells) Reason: It provides quick, powerful and rhythmic contractions to the heart.
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Solution
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Cardiac muscle of the heart is a striated muscle. These muscle fibers have a single nucleus, are branched, and joined to one another by intercalated discs that contain gap junctions and desmosomes. Intercalated discs support synchronized contraction of cardiac tissue by allowing direct transmission of the depolarizing current from cell to cell, across the chambers of the heart, so that the cells contract in unison. So, the correct option is 'Both Assertion and Reason are correct and Reason is the correct explanation for Assertion'.
Cardiac muscle of the heart is a striated muscle. These muscle fibers have a single nucleus, are branched, and joined to one another by intercalated discs that contain gap junctions and desmosomes. Intercalated discs support synchronized contraction of cardiac tissue by allowing direct transmission of the depolarizing current from cell to cell, across the chambers of the heart, so that the cells contract in unison. So, the correct option is 'Both Assertion and Reason are correct and Reason is the correct explanation for Assertion'.
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