Question

Give three features of cardiac muscles.​

Answer 1

Explanation:

Cardiac muscles are involuntary muscles. They are involved in continuous rhythmic contraction and relaxation.

Cardiomyocytes or the cardiac cells are uninucleate, cylindrical, and elongated

Cardiac muscles display faint cross-striations which do not get fatigued under normal circumstances.

Answer 2

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(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.