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Synapse. Definition. noun, plural: synapses. A specialized structure or junction that allows cell to cell communication. verb. (1) To form a synapse. (2) To undergo synapsis. Supplement. A biological synapse involving neurons can be:(1) Chemical synapse: the junction between neurons such that the nerve impulse is transmitted from a neuron to another neuron or to a muscle cell or gland cell. (2) Electrical synapse: the gap junction between two apposed neurons that allows faster nerve transmission.Recently, a biological synapse not involving a neuron is found to exist. The junction between a lymphocyte and an antigen-presenting cell is referred to as immunological synapse.ynapse. Definition. noun, plural: synapses. A specialized structure or junction that allows cell to cell communication. verb. (1) To form a synapse. (2) To undergo synapsis. Supplement. A biological synapse involving neurons can be:
The word synapse â from the Greek synapsis (ÏÏÎ½Î¬ÏÏÎ¹Ï), meaning conjunction, in turn from ÏÏÎ½Î¬ÏÏÎµá½¶Î½ (ÏÏÎ½ (together) and á¼ÏÏÎµÎ¹Î½ (to fasten)) â was introduced in 1897 by English physiologist Michael Foster at the suggestion of English classical scholar Arthur Woollgar Verrall. In an electrical synapse, the presynaptic and postsynaptic cell membranes are connected by special channels called gap junctions that are capable of passing electric current, causing voltage changes in the presynaptic cell to induce voltage changes in the postsynaptic cell.