Neurotransmitters that cause skeletal muscle contraction are normally stored in
A) myofibrils.
B) motor neuron axon terminals.
C) motor units.
D) motor end plates.
E) actin.

Question

Quizplus · Accepted Answer

Neurotransmitters that cause skeletal muscle contraction, such as acetylcholine, are stored in the motor neuron axon terminals at the neuromuscular junction. When an action potential reaches the axon terminal, the neurotransmitter is released into the synaptic cleft, where it binds to receptors on the muscle cell membrane and initiates a muscle contraction.

Neurotransmitters That Cause Skeletal Muscle Contraction Are Normally Stored in