Question

Which of the following is/are mechanism(s) to end neural transmission at the neuromuscular junction?

A) Diffusion of neurotransmitters
B) Reuptake of neurotransmitters
C) Enzymatic degradation
D) All of the above

Answer 1

The mechanisms to end neural transmission at the neuromuscular junction include: diffusion of neurotransmitters, reuptake of neurotransmitters, and enzymatic degradation.

Step-by-step explanation:

The mechanisms to end neural transmission at the neuromuscular junction include:

1. Diffusion of neurotransmitters: After neurotransmission, the neurotransmitter can diffuse away from the synaptic cleft, moving out of the junction and reducing its concentration.
2. Reuptake of neurotransmitters: The presynaptic neuron can recycle the neurotransmitter by reuptaking it, bringing it back into the neuron to be used again in future transmissions.
3. Enzymatic degradation: Enzymes in the synaptic cleft can degrade the neurotransmitter, breaking it down into inactive substances and terminating the signal.

Therefore, the correct answer is D) All of the above.