Question

functional unit of involuntary muscle is​

Answer 1

In skeletal and cardiac muscle, actin and myosin filaments are organized into sarcomeres that function as the fundamental unit of contraction. ... Smooth muscle cells contain a single nucleus and lack sarcomeres. They specialize in slow, powerful contractions and are under involuntary control.

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Answer 2

Sarcomere

Muscle fibre

Myofibril

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