Question

The rhythmic contraction and relaxation takes place throughout life by cardiac muscles.

• A. True
• B. False

Answer 1

The correct option is A True

Cardiac muscles:

1. These are the muscles of the heart and are involuntary in action.
2. They carry out rhythmic contraction and relaxation throughout life without undergoing fatigue.
3. The movement of cardiac muscles is not under the control of the will.
4. It is under the control of the nervous system.
5. The continuous supply of nutrients and oxygen by the pumping of the blood is a must for the survival of the organism.

Final answer:

The given statement is true.