At the neuromuscular junction, the axon terminal contains:
A)acetylcholine to be stored when an impulse arrives
B)cholinesterase to return the impulse to the neuron
C)acetylcholine to transmit the impulse to the muscle fiber
D)cholinesterase to prevent unwanted continuous contractions

Question

Quizplus · Accepted Answer

The axon terminal at the neuromuscular junction contains acetylcholine, which is released upon arrival of an impulse to transmit the impulse to the muscle fiber. Cholinesterase is also present but its function is to breakdown acetylcholine after it has transmitted the impulse, not to return the impulse to the neuron. Cholinesterase also helps to prevent unwanted continuous contractions.

At the Neuromuscular Junction, the Axon Terminal Contains