Medical dictionary. 2011.
excitable cell — A cell in which the membrane response to depolarizations is non linear, causing amplification and propagation of the depolarisation (an action potential ). Apart from neurons and muscle cells, electrical excitability can be observed in fertilized … Dictionary of molecular biology
excitable membrane — the membrane of an excitable cell … Medical dictionary
Excitable medium — An excitable medium is a nonlinear dynamical system which has the capacity to propagate a wave of some description, and which cannot support the passing of another wave until a certain amount of time has passed (known as the refractory time). A… … Wikipedia
Cell surface receptor — The seven transmembrane α helix structure of a G protein coupled receptor Cell surface receptors (membrane receptors, transmembrane receptors) are specialized integral membrane proteins that take part in communication between the cell and the… … Wikipedia
cell — cell1 cell like, adj. /sel/, n. 1. a small room, as in a convent or prison. 2. any of various small compartments or bounded areas forming part of a whole. 3. a small group acting as a unit within a larger organization: a local cell of the… … Universalium
excitable — 1. Capable of quick response to a stimulus; having potentiality for emotional arousal. Cf.:irritable. 2. In neurophysiology, referring to a tissue, cell, or membrane capable of undergoing excitation in response to an adequate stimul … Medical dictionary
excitable — adjective 1》 easily excited. 2》 (of tissue or a cell) responsive to stimulation. Derivatives excitability noun excitably adverb … English new terms dictionary
Magnocellular neurosecretory cell — Not to be confused with Magnocellular cell. Magnocellular neurosecretory cells are large cells within the supraoptic nucleus and paraventricular nucleus of the hypothalamus. They are also found in smaller numbers in accessory cell groups between… … 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
Neuron — This article is about cells in the nervous system. For other uses, see Neuron (disambiguation). Brain cell redirects here. For other uses, see Glial cell. Neuron: Nerve Cell … Wikipedia
