Question

neuronmuscular junction chronological order

neuronmuscular junction chronological order

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Answer #1

ANSWER :

The chronological order of events that occur at the neuromuscular junction of skeletal muscles :-

1. Action potential reaches at the axon terminals of motor neuron

2. Calcium ions enter into the presynaptic terminals

3. Diffusion of acetylcholine neurotransmitter from synaptic vesicles into the synaptic cleft

4. Binding of ACh on nicotinic receptors located on sarcolemma of muscle

5. Opening of Na+/K+ channels on the postsynaptic membrane

6. Transmission of action potential or end plate potential across the motor end plate of neuromuscular junction

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