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Question
Assertion :In cardiac muscles, impulses are transmitted rapidly. Reason: Gap junctions allow quick passage of ions from one cell to the other.
Assertion :In cardiac muscles, impulses are transmitted rapidly. Reason: Gap junctions allow quick passage of ions from one cell to the other.
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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 is an involuntary striated muscle found in the walls of the heart . These
contract involuntarily in a rhythmic fashion and are automatically regulated. The
cardiac muscles have intercalated disks located between the cells, which
contain gap junctions that act as communicating channels and allow quick
passage of ions from one cell to another. Here, both Assertion and Reason are
the correct.
Thus the reason is the correct explanation for the assertion.
So, the correct answer is A.
Cardiac muscle is an involuntary striated muscle found in the walls of the heart . These contract involuntarily in a rhythmic fashion and are automatically regulated. The cardiac muscles have intercalated disks located between the cells, which contain gap junctions that act as communicating channels and allow quick passage of ions from one cell to another. Here, both Assertion and Reason are the correct.
Thus the reason is the correct explanation for the assertion. So, the correct answer is A.
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