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synapse Definition

synapse Bedeutung

synapse the junction between two neurons (axon-to-dendrite) or between a neuron and a muscle, nerve impulses cross a synapse through the action of neurotransmitters
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In the nervous system, a synapse is a structure that permits a neuron to pass an electrical or chemical signal to another neuron. Some authors generalize this concept to include the communication from a neuron to any other cell type, such as to a motor cell, although such non-neuronal contacts may be referred to as junctions . Santiago Ramón y Cajal proposed that neurons are not continuous throughout the body, yet still communicate with each other, an idea known as the neuron doctrine. Synapses are stabilized in position by synaptic adhesion molecules projecting from both the pre- and post-synaptic neuron and sticking together where they overlap; SAMs may also assist in the generation and functioning of synapses.

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