end-plate

end-plate
n.
the area of muscle cell membrane immediately beneath the motor nerve ending at a neuromuscular junction. Special receptors in this area trigger muscular contraction when the nerve ending releases its neurotransmitter.

Medical dictionary. 2011.

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  • End plate — End End ([e^]nd), n. [OE. & AS. ende; akin to OS. endi, D. einde, eind, OHG. enti, G. ende, Icel. endir, endi, Sw. [ a]nde, Dan. ende, Goth. andeis, Skr. anta. [root]208. Cf. {Ante }, {Anti }, {Answer}.] 1. The extreme or last point or part of… …   The Collaborative International Dictionary of English

  • end plate — n a complex terminal arborization of the axon of a motor neuron that contacts with a muscle fiber called also end brush * * * (end plāt) a flat termination. Spelled also end plate …   Medical dictionary

  • end plate — end′ plate n. cbl a specialized area on the surface of a muscle fiber where a motor neuron makes contact with the muscle • Etymology: 1875–80 …   From formal English to slang

  • end plate — n. the area of specialized tissue that forms the junction between an individual muscle fiber and its motor nerve …   English World dictionary

  • end plate — noun : a flat plate or structure at the end of something: as a. : a complex terminal arborization of a motor nerve fiber called also end brush b. : one of the main end timbers of a shaft set in a mine c. : a surface attached approximately… …   Useful english dictionary

  • end-plate — noun the flattened end of a motor neuron that transmits neural impulses to a muscle • Syn: ↑endplate, ↑motor end plate • Hypernyms: ↑end organ • Part Holonyms: ↑effector …   Useful english dictionary

  • End-plate potential — Miniature end plate potentials and end plate spikes recorded from muscle fiber End plate potentials (EPPs) (sometimes called end plate spikes ) are the depolarizations of skeletal muscle fibers caused by neurotransmitters binding to the… …   Wikipedia

  • end-plate potential — ▪ physiology       chemically induced change in electric potential of the motor end plate, the portion of the muscle cell membrane that lies opposite the terminal of a nerve fibre at the neuromuscular junction. The end plate membrane is… …   Universalium

  • end-plate activity — spontaneous activity recorded close to motor end plates in normal muscle. There are two types: monophasic (or end plate noise) consists of dense, steady, entirely negative potentials with low amplitude and high frequency, similar to the miniature …   Medical dictionary

  • end plate potential — Depolarization of the sarcolemma as a result of acetylcholine release from the motoneuron causing an influx of sodium ions. The end plate potential is the sum of quantal miniature end plate potentials. Development of the end plate potential is… …   Dictionary of molecular biology

  • end-plate noise — the monophasic type of end plate activity …   Medical dictionary

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