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  4. The cell junction responsible for the beating of cardiac muscle as an unit is:

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Q. The cell junction responsible for the beating of cardiac muscle as an unit is:

NTA AbhyasNTA Abhyas 2022

Solution:

Gap junction forms channels between adjacent cardiac muscle fibres. Intercalated discs are part of the sarcolemma and contain two structures important in cardiac muscle contraction: gap junctions and desmosomes.