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Anatomy & Physiology I GSBN 222-Muscle Contraction Steps

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Touro College

Anatomy & Physiology I GSBN 222-Muscle Contraction Steps

 

1.A nerve impulse travels to the neuromuscular junction on a
muscle cell. The neuromuscular junction is the point where
the axons of the nerve meet with the muscle cell.
2. Ach is released from the axon to receptors located on the
sarcolemma
3. The binding Ach causes depolarization of the sarcolemma by
opening ion channels and allowing Na+ ions into the muscle
cell.

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Anatomy & Physiology I GSBN 222-Muscle Contraction Steps

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