Intercalated discs are present in

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(C) Intercalated discs are a unique and distinguishing feature of cardiac muscle. They are dark,irregular,zig-zag partitions found between adjacent ca

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Cardiac muscles

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(C) Intercalated discs are a unique and distinguishing feature of cardiac muscle. They are dark,irregular,zig-zag partitions found between adjacent cardiac muscle cells. They consist of both transverse and lateral portions. Intercalated discs provide firm adhesions between adjacent cells and facilitate electrical coupling for the rapid spread of excitation,which allows the heart muscle to contract as a single unit.

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