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NMJ potential

put in order the seq of events for a action potential to happen at the NMJ

generation of the end plateorder in which it happens
an AP at the axon terminal opens voltage-gated calcium channels in the terminal button, calcium ions diffuse into the terminal button from the ECF 1
acetylocholine is released by exocytosis from the vesicles in the terminal button 2
ACh diffuses through the space b/w the nerve cell and muscle cell 3
ACh binds to receptor sites on the motor end plate of the muscle cell 4
this binding opens channels for sodium influx into the ICF of the muscle cell 5
a local current flow that opens adjacent sodium channels in the motor end plate 6
an action potential is initiated through the muscle fiber 7
AChe acetylocholinesterase terminates the activity of ACh and NMJ 8
Created by: lainylaina



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