Action potential propagation in a skeletal muscle fiber ceases when acetylcholine is removed from the synaptic cleft. Which of the following mechanisms ensures a rapid and efficient removal of acetylcholine? a. Acetylcholine is degraded by acetylcholinesterase. b. Acetylcholine is transported back into the axon terminal by a reuptake mechanism. c. Acetylcholine is transported into the postsynaptic neuron by receptor-mediated endocytosis. d. Acetylcholine diffuses away from the cleft.

Action potential propagation in a skeletal muscle fiber ceases when acetylcholine is removed from the synaptic cleft. Which of the following mechanisms ensures a rapid and efficient removal of acetylcholine?
a. Acetylcholine is degraded by acetylcholinesterase.
b. Acetylcholine is transported back into the axon terminal by a reuptake mechanism.
c. Acetylcholine is transported into the postsynaptic neuron by receptor-mediated endocytosis.
d. Acetylcholine diffuses away from the cleft.

 
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