- depolarization block
- failure of an excitable cell to respond to a stimulus, because the membrane is depolarized.
Medical dictionary. 2011.
depolarization block
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block — 1. To obstruct; to arrest passage through. 2. A condition in which the passage of an electrical impulse is arrested, wholly or in part, temporarily or permanently. 3. SYN: atrioventricular b.. [Fr. bloquer] alveolocapillary b. the presence of… … Medical dictionary
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third degree atrioventricular block — a third degree heart block due to total cessation of impulse conduction through the atrioventricular junctional tissue; no correspondence exists between atrial and ventricular activity, and ventricular asystole and death occur unless a… … Medical dictionary
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cholinergic crisis — muscular weakness resulting from depolarization block due to overdosage of anticholinesterase agents used for myasthenia gravis; similar to but different from myasthenic crisis … Medical dictionary
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
