Synapse is defined as the connection bridging the presynaptic neuron, its dendrite and the axon terminal. It is one of the vital parts of the communication process in the nerve, and this is a very functional connection.
The axon terminal could be known by determining the synaptic vesicles and the immense quantity of mitochondria. The synapse is located at the farthest end of the presynaptic neuron. Synaptic vesicles have a neurotransmitter chemical, and its most common type is the acetylcholine. When these vesicles are stimulated into an action or an action potential, it will likely respond by releasing into the synaptic cleft the neurotransmitter chemical.
The synaptic cleft is characterized as a tiny opening that separates the presynaptic and postsynaptic membranes. If the nerve impulses transpire in an adequate quantity in a short period, there would be an adequate build up of the neurotransmitter in the synaptic cleft, depolarizing the postsynaptic neuron. The synaptic cleft then has the enzymes that helps decompose the neurotransmitters. It expires over time, and thus regular clearing out is needed. This is made possible through the enzyme acetylcholine, which is housed in the cleft and is released when it is time to destruct the expired neurotransmitters.