MEDICAL PHYSIOLOGY

Detailed explanation-1: -The place where an axon terminal meets another cell is called a synapse. The axon terminal and other cell are separated by a narrow space known as a synaptic cleft (see Figure below). When an action potential reaches the axon terminal, the axon terminal releases molecules of a chemical called a neurotransmitter.

Detailed explanation-2: -The space between the two is known as the synaptic cleft. The space tells us there must be some intermediary signaling mechanism between the presynaptic neuron and the postsynaptic neuron in order to have information flow across the synaptic cleft.

Detailed explanation-3: -The Synapse The place where the axon of one neuron meets the dendrite of another is called a synapse. Synapses are also found between neurons and other type of cells, such as muscle cells.

Detailed explanation-4: -The rise in Ca2+ concentration causes synaptic vesicles – presynaptic organelles that store neurotransmitters – to fuse with the plasma membrane and release their contents into the space, termed “synaptic cleft, ‘’ between the pre-and postsynaptic cells. The functional cycle of all neurotransmitter molecules is similar.