Myelinated axon ol motor nauron Ax potential (AP Axon terminal of Sarcolemma of

Question

Myelinated axon ol motor nauron Ax potential (AP Axon terminal of Sarcolemma of the muscie ber 0 Action potential arrives at aron teminal of motor neuron open Cal- enters the anon teminal, eg down its containing ACh Cae entry causs ACh (a olds of OAO drhan arrow thr synaptic cleft and binds to its receptors on the sarcolemma Sarcoplasm o Abindeg opera ion muacle fiber and K ons pass out of the muscle fiber More Na" ons enter than K' ions exit which produces a local change in the end plate potential Degraded ACh . 4Ch eftects are terminated by -Ion channel closes ions cannot pass omwon away from the ction

Explanation / Answer

1. Synaptic Vesicle

2. Acetocholineterase

3. K+

4. Synaptic Cleft

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