AP PSYCHOLOGY

Detailed explanation-1: -Inside the axon terminal of a sending cell are many synaptic vesicles. These are membrane-bound spheres filled with neurotransmitter molecules. There is a small gap between the axon terminal of the presynaptic neuron and the membrane of the postsynaptic cell, and this gap is called the synaptic cleft.

Detailed explanation-2: -Neurotransmitters are stored in synaptic vesicles. These vesicles are located in the axon terminal of a presynaptic neuron of the central or peripheral nervous system. There are many types of neurotransmitters and they may be either excitatory or inhibitory.

Detailed explanation-3: -Synaptic vesicles are found at high density in presynaptic nerve endings, where they store neurotransmitters that they release when action potentials depolarize cells, opening voltage-dependent Ca2+ channels to increase intracellular Ca2+ concentrations.

Detailed explanation-4: -The presynaptic terminal, located along the axon of most neurons, is a compartment where neurotransmitter-containing vesicles cluster near a highly specialized region of the plasma membrane called the ‘active zone’. From there, vesicles release their contents during synaptic transmission.

Detailed explanation-5: -These signals are transmitted electrically across the soma and down a major extension from the soma known as the axon, which ends at multiple terminal buttons. The terminal buttons contain synaptic vesicles that house neurotransmitters, the chemical messengers of the nervous system.