Anatomy and Physiology

1. Once the synaptic vesticles have fused with the membrane of the axon terminal acetylcholine ______ and calcium ions _____ the synaptic cleft.

2. Binding sites are exposed by the ____ that brings about the release of___.

3. Depolarization of the motor end plate occurs because of a (n) _____ of sodium ions and a small _______ of potasium ions.

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