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A neuromuscular junction (or myoneural junction) is a chemical synapse between a motor neuron and a muscle fiber. [1] It allows the motor neuron to transmit a signal to the muscle fiber, causing muscle contraction. [2] Muscles require innervation to function—and even just to maintain muscle tone, avoiding atrophy.
Bumped into this at COM:FPC. Clear, technically precise and encyclopedic SVG diagram of a neuron cell. Articles this image appears in Dendrite, Chemical synapse Creator LadyofHats. Discussion of the diagram: Support as nominator — MER-C 04:51, 13 July 2007 (UTC) Support I have a slight preference for the numbered version though.
Diagram of a chemical synaptic connection. In the nervous system, a synapse [1] is a structure that allows a neuron (or nerve cell) to pass an electrical or chemical signal to another neuron or a target effector cell. Synapses can be classified as either chemical or electrical, depending on the mechanism of signal transmission between neurons.
The following other wikis use this file: Usage on ar.wikipedia.org جهاز عصبي مركزي; ميالين; إعادة تكون الميالين
The neurotransmitter binds to chemical receptor molecules located in the membrane of another neuron, the postsynaptic neuron, on the opposite side of the synaptic cleft. Chemical synapses are biological junctions through which neurons ' signals can be sent to each other and to non-neuronal cells such as those in muscles or glands .
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Neurotransmitters are chemical messengers passed from one neuron to another neuron or to a muscle cell or gland cell. Cholinergic neurons – acetylcholine. Acetylcholine is released from presynaptic neurons into the synaptic cleft. It acts as a ligand for both ligand-gated ion channels and metabotropic (GPCRs) muscarinic receptors.