Question

which cell are responsible for contraction and relaxation movement​

Answer 1

Answer:

Muscle cells are responsible for the contraction and relaxation movement in our body....

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Answer 2

Answer:

Each skeletal muscle fiber is a skeletal muscle cell. These cells are incredibly large, with diameters of up to 100 µm and lengths of up to 30 cm. The plasma membrane of a skeletal muscle fiber is called the sarcolemma. The sarcolemma is the site of action potential conduction, which triggers muscle contraction