NMJ-Neuromuscular Junction Axon terminal Voltage-gatedCa2 Ca channel Nerve impul

Question

NMJ-Neuromuscular Junction Axon terminal Voltage-gatedCa2 Ca channel Nerve impulse Synaptic veside containing acetylcholine (ACh) Sarcolemma Motor end plate Synaptic end bulb Synaptic cleft (space) Enlarged view of the neuromuscular junction Copyright 0 Jehe Wiley & Sonsnc All rights eserved 1) Arrival of action potential to the waderminal 2) Opening of 3) Influx of.. into the 4) Synaptic vesicles iss 5) Release of Ach intgapit.cats and this processis called-ocahosis 6) Ach binds to 7) This causes opening of Lignrd . N channels 8) Influx ofinto the muscle tissue 9) Muscle tissue is 10) Action potential travels through. ge gald..c. channels Sll.memzore with tssynophi.. membrane ghs.clet an this process s called receptors/y tors /K

Explanation / Answer

8. Influx of sodium ions into the muscle tissue.

9. Muscle tissue is depolarised

After release of Acetyl choline (acts through ligand gated ion channels) from the nere terminal,, it binds to the post synaptic neuron or muscle tissue, where it genrates action potnial prioor to transmission of impulse. For the action potential to genrate, sodium channls first respond and make the cell depolarised.

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