Nerve impulse, drawing

Nerve impulse, drawing

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Credit: JACOPIN/SCIENCE PHOTO LIBRARY

Caption: NERVE IMPULSE, DRAWING Illustration of the transmission of a nerve impulse with a central close-up showing how the transmission occurs between a synapse on neuron A to a dendritic spine on neuron B. Vesicles liberate excitatory neurotransmitters (purple triangles) which open the sodium channels and enable Na+ ions (red spheres) to penetrate a dendritic spine on neuron B, creating an electric current which travels along the latter neuron's axon to its synapses.

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Keywords: action potential, artwork, axon, cell, chemical synapse, communication, connection, cytology, dendrite, exocytosis, health, medicine, membrane receptor, membranous protein, myelin, myelin sheath, nerve impulse, nervous system, neuron, neurotransmitter, plain background, receptor, science, sciences, synapse, synaptic cleft, synaptic vesicle, transmission, vesicle

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