Nerve synapse

Nerve synapse

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Credit: ALFRED PASIEKA/SCIENCE PHOTO LIBRARY

Caption: Synapse. Computer artwork of a synapse, the junction between two nerve cells. Other nerve cell bodies are present. Synapses transmit electrical signals from one nerve cell to the next. When an electrical signal reaches a synapse it triggers the release of chemicals called neurotransmitters (blue spheres) from vesicles (pink) in the terminal swelling of the presynaptic cell. The vesicles burst through the membrane, & neurotransmitters cross a microscopic gap called the synaptic cleft, and bind to the receptor nerve cell. The neurotransmitter changes the permeability of the postsynaptic membrane, causing it to propagate an electrical impulse.

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Keywords: 3d-illustration, communication, exocytosis, fibre, human anatomy, human body, impulse, journey, landscape, nerve, nerve cell, nerve cells, nervous system, neuron, neurone, neurotransmitter, synapse, synaptic vesicle

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