ANATOMY

Detailed explanation-1: -The neurotransmitters are stored in synaptic vesicles of axon terminal and are released into the synaptic cleft.

Detailed explanation-2: -An axon terminal. Neurotransmitters are located in a part of the neuron called the axon terminal. They’re stored within thin-walled sacs called synaptic vesicles. Each vesicle can contain thousands of neurotransmitter molecules.

Detailed explanation-3: -Acetylcholine, for example, is the neurotransmitter that is released by a neuron to stimulate a muscle cell. If the axon terminal fails to release acetylcholine, there will be no chemical to activate the target muscle.