Complete each sentence regarding steps that occur at the neuromuscular junction,

Question

Complete each sentence regarding steps that occur at the neuromuscular junction, then click and drag the steps into the proper sequence Drag the text blocks below into their correct order muscarinic receptors motor end plate Acetylcholine diffuses from the axon terminal to the skeletal muscle fiber of the nicotinic receptors threshold potential Local currents its the adjacent muscle cell plasma membrane to acetylcholinesterase Nat enters the axon terminal through More moves into the fiber at the motor end plate than moves out, depolarizing the membrane and producing the depolarize norepinephrine end-plate potential (EPP) An action potential is initiated and propagates to the terminal axon are generated, which propagate along the skeletal muscle Ca2 motor neuron fiber surface and into the fiber along the The end of excitation at the neuromuscular junction involves acetylcholine degradation by acetylcholine T-tubules This triggers the release of from the axon terminal voltage-gated Ca2 channels Action potentials Acetylcholine binds to increasing their permeability to Nat and K+ on the motor end plate membrane,

Explanation / Answer

1. An action potential is initiated and propagates to the motor neuron axon terminals.

2. Ca+ enters the axon terminals through voltage-gated Ca+ channel.

3. This trigger the release of acetylcholine from the axon terminal.

4. Acetylcholine diffuse from the axon terminal to the motor end plate of the skeletal muscle fibres.

5. Acetylcholine binds to nicotinic receptors on the motor end plate membrane increasing their permeability to Na+ and K+.

6. More Na+ moves into the fibre at the motor end plate than K+ moves out, depolarizing the membrane and producing the end plate potential.

7. Local current depolarize the adjacent muscle cell plasma membrane to its threshold potential.

8. Action potential is generated , which propagate the along the skeletal muscle fibre surface onto the fibre along the T-tubule.

9. The end of excitation at the neuromuscular junction involves acetylcholine degradation by acetylcholinesterase.

Hope you got your answer, thanks

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