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Assertion: In cardiac muscle tissue, the...

Assertion: In cardiac muscle tissue, the communication junctions (intercalated discs) at some fusion points allow the cells to contract as a unit.
Reason: When one cell of cardiac muscle tissue recieves a signal to contract, its neighbours are also stimulated to contract.

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Assertion (A). In cardiac muscles , impulses are transmitted rapidly . Reason (R) . Gap junctions allow quick passage of ions from one cell to the other.

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