Plateau potentials

Plateau potentials

Plateau potentials are a type of electrical behaviour seen by cells in the spinal cord. They are of particular importance to spinal motor systems.Potentials are set up by the influence of descending monoaminergic reticulospinal pathways. Activation of dendritic conductances lead to a lasting depolarisation. In this state, the cell fires action potentials independent of synaptic input.

References

Svirskis et al. (2001) Electrotonic structure of motoneurons in the spinal cord of the turtle: inferences for the mechanisms of bistability. J. Neurophysiol. 85:391-398 (PMID: 11152739)


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • Sachs-Wolfe-Plateau — Hintergrundstrahlung, aufgenommen durch den Satelliten WMAP Planck Der Sachs Wolfe Effekt ist neben der Silk Dämpfung und a …   Deutsch Wikipedia

  • Electrotonic potential — In physiology, electrotonic conduction refers to the passive conduction of current, and can be considered the opposite of saltatory conduction. In order for a neuron to fire, there are two types of electrical potentials produced. The first is a… …   Wikipedia

  • Action potential — In physiology, an action potential is a short lasting event in which the electrical membrane potential of a cell rapidly rises and falls, following a consistent trajectory. Action potentials occur in several types of animal cells, called… …   Wikipedia

  • Ventricular action potential — At rest, the ventricular myocyte membrane potential is about 90 mV, which is close to the potassium reversal potential. When an action potential is generated, the membrane potential rises above this level in four distinct phases.The beginning of… …   Wikipedia

  • Matupi — မတူပီ Nickname(s): Batu Myanmar  Burma …   Wikipedia

  • muscle — muscleless, adj. muscly, adj. /mus euhl/, n., v., muscled, muscling, adj. n. 1. a tissue composed of cells or fibers, the contraction of which produces movement in the body. 2. an organ, composed of muscle tissue, that contracts to produce a… …   Universalium

  • Antarctica — /ant ahrk ti keuh, ahr ti /, n. the continent surrounding the South Pole: almost entirely covered by an ice sheet. ab. 5,000,000 sq. mi. (12,950,000 sq. km). Also called Antarctic Continent. * * * Antarctica Introduction Antarctica Background:… …   Universalium

  • Superior craton — in the west. The western margin extends from northern Minnesota through eastern Manitoba to northwestern Ontario.The formation of the Superior craton is best explained within the context of 2.72 2.68 Ga accretion of small continental plates and… …   Wikipedia

  • Iran — Persia redirects here. For other uses, see Persia (disambiguation). Coordinates: 32°N 53°E …   Wikipedia

  • Cardiac action potential — The cardiac action potential is a specialized action potential in the heart, with unique properties necessary for function of the electrical conduction system of the heart.The cardiac action potential differs significantly in different portions… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”