Write about cardiac Muscles.....
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Cardiac muscle (heart muscle) is one of the three main types of muscle in vertebrates. It is involuntary: a person cannot control it consciously. Also, it is a striped muscle in the walls of the heart. It makes up the tissue called the myocardium. The other types of muscle are the skeletal and smooth muscle.........
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Answer:(i) Cardiac muscles are involuntary. They cannot be controlled by will. (ii) Cardiac muscle cells are cylindrical, branched and uninucleate. (iii) Cardiac muscles show rhythmic contraction and relaxation throughout the life.
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