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Unformatted text preview: 3) Ca++ ions trigger vesicles of Ach to fuse with the plasma membrane 4) ACh diffuses across the synaptic cleft and binds with receptors in the motor endplate 5) ACh binding with the receptor leads to the opening of cation channels. Na++ enters and depolarizes the end plate (EPP) 6) Depolarizing current flows to adjacent membrane that contains voltage-gated Na++ channels (action potential) 7) Ach is degraded by Ach-esterase, terminating the action of ACh...
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This note was uploaded on 10/29/2009 for the course NPB NPB 101 taught by Professor Weidner/wingfield during the Fall '08 term at UC Davis.
- Fall '08