Unit of contraction :

Assertion: The portion of the myofibril between two successive Z-lines is considered as the function unit of contraction called sarcomere. Reason: During contraction, l-bands get reduced whereas A-bands retain the length , thereby causing shortening of the sarcomere.

Assertion: The portion of the myofibril between two successive Z-lines is considered as the functional unit of contraction called sarcomere. Reason: During contraction, l-bands get reduced whereas A-bands retain the length , thereby causing shortening of the sarcomere.

Assertion: The portion of the myofibril between two successive Z-lines is considered as the functional unit of contraction called sarcomere. Reason: During contraction, l-bands get reduced whereas A-bands retain the length , thereby causing shortening of the sarcomere.

Describe mechanism of muscle contraction. Or What is sarcomere ? Discuss the mechanism of contraction of a skeletal muscle. Or Describe molecular mechanism of muscle contraction.

The ion that always keeps the cardiac muscle unit in contracting state is

The all-or-none law of muscle contraction refers to a maximum contraction or no contraction of a__.

The all-or-none law of muscle contraction refers to a maximum contraction or no contraction of a ............

Define isotonic contraction and isometric contraction.

Sarcomere is the unit of (a) Contraction (b) Relaxation (c) Contraction and relaxation (d) None of the above

Sarcomere is the unit of (a) Contraction (b) Relaxation (c) Contraction and relaxation (d) None of the above