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11 Dec 2019
These events are associated with muscle contraction:
1.T tubules transmit electrical impulses throughout the muscle fiber
2.Myosin contacts actin and pulls it toward the center of the sarcomere
3.Acetylcholine binds to receptors on the muscle sarcolemma
4.Troponin-tropomysin complex shifts to expose myosin binding sites
5.Calcium is released from the sarcoplasmic reticulum
Which of these lists best describes the sequence in which these events occur once the initiation of contraction is stimulated by a nerve impulse travelling to the neuromuscular junction?
These events are associated with muscle contraction:
1.T tubules transmit electrical impulses throughout the muscle fiber
2.Myosin contacts actin and pulls it toward the center of the sarcomere
3.Acetylcholine binds to receptors on the muscle sarcolemma
4.Troponin-tropomysin complex shifts to expose myosin binding sites
5.Calcium is released from the sarcoplasmic reticulum
Which of these lists best describes the sequence in which these events occur once the initiation of contraction is stimulated by a nerve impulse travelling to the neuromuscular junction?
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