Question

what is stored in the synaptic vesicles of axons of motor neurons?
o calcium ions
o glucose
o atp
o acetylcholine
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Explanation:

Motor neurons release neurotransmitters at the neuromuscular junction. Acetylcholine is the neurotransmitter stored in synaptic vesicles of motor - neuron axons and is released to stimulate muscle contraction. Calcium ions are involved in the release process but are not stored in synaptic vesicles. Glucose is an energy - source for cells and not a neurotransmitter. ATP is an energy - carrying molecule, not a neurotransmitter stored in these vesicles.

Answer:

Acetylcholine