| EPSC | excitatory postsynaptic current |
|---|---|
| EPSP | excitatory postsynaptic potential |
| HIPO | hemihypertrophy, intestinal web, preauricular skin tag, and congenital corneal opacity [syndrome]; H... |
| IPSC | inhibitory postsynaptic current |
| IPSP | inhibitory postsynaptic potential |
| WWW | Word Wide Web |
|---|---|
| EPSC | Excitatory postsynaptic current |
| f-EPSPs | Fast excitatory postsynaptic potentials |
| fEPSP | Field excitatory postsynaptic potential |
| IPSPs | inhibitor postsynaptic potentials |
web
| postsynaptic | Pertaining to the area on the distal side of a synaptic cleft. (05 Mar 2000) |
|---|---|
| postsynaptic cell | In a chemical synapse, the cell that receives a signal (binds neurotransmitter) from the presynaptic cell and responds with depolarisation In an electrical synapse, the postsynaptic cell would just be downstream, but since many electrical synapses are rectifying, one of the two cells involved will always be postsynaptic. (18 Nov 1997) |
| postsynaptic membrane | That part of the plasma membrane of a neuron or muscle fibre with which an axon terminal forms a synaptic junction; in many instances, at least part of such a small postsynaptic membrane patch shows characteristic morphological modifications such as greater thickness and higher electron-density, believed to correspond to the transmitter-sensitive receptor site of such synapses. (05 Mar 2000) |
| postsynaptic potential | In a synapse, a change in the resting potential of a postsynaptic cell following stimulation of the presynaptic cell. For example: in a cholinergic synapse, the release of acetylcholine from the presynaptic cell causes channels to open in the postsynaptic cell. Each channel opening causes a small depolarisation, known as a miniature end plate potential (mepp), these sum to produce an excitatory postsynaptic potential. (18 Nov 1997) |
| inhibitory postsynaptic potential | The change in potential produced in the membrane of the next neuron when an impulse which has an inhibitory influence arrives at the synapse; it is a local change in the direction of hyperpolarization; the frequency of discharge of a given neuron is determined by the extent to which impulses that lead to excitatory postsynaptic potential's predominate over those that cause inhibitory postsynaptic potential's. (05 Mar 2000) |
| excitatory postsynaptic potential | The change in potential which is produced in the membrane of the next neuron when an impulse which has an excitatory influence arrives at the synapse; it is a local change in the direction of depolarisation; summation of these potential's can lead to discharge of an impulse by the neuron. (05 Mar 2000) |
| excitatory postsynaptic potentials | The change in potential produced in the membrane of the next neuron when an impulse which has an excitatory influence arrives at the synapse; it is a local change in the direction of depolarisation; summation of these potentials can lead to discharge of an impulse by the neuron. (12 Dec 1998) |
| cervical oesophageal web | <radiology> Post-cricoid web, M=F, 5% of UGI patients, anterior (antero-lateral), with or without dysphagia, Treatment: endoscopic disruption (lysis) see: oesophageal webs and rings (12 Dec 1998) |
| web | 1. That which is woven; a texture; textile fabric; especially, something woven in a loom. "Penelope, for her Ulysses' sake, Devised a web her wooers to deceive." (Spenser) "Not web might be woven, not a shuttle thrown, or penalty of exile." (Bancroft) 2. A whole piece of linen cloth as woven. 3. The texture of very fine thread spun by a spider for catching insects at its prey; a cobweb. "The smallest spider's web." 4. Tissue; texture; complicated fabrication. "The somber spirit of our forefathers, who wove their web of life with hardly a . . . Thread of rose-colour or gold." (Hawthorne) "Such has been the perplexing ingenuity of commentators that it is difficult to extricate the truth from the web of conjectures." (W. Irving) 5. A band of webbing used to regulate the extension of the hood. 6. A thin metal sheet, plate, or strip, as of lead. "And Christians slain roll up in webs of lead." (Fairfax) Specifically: The blade of a sword. "The sword, whereof the web was steel, Pommel rich stone, hilt gold." (Fairfax) The blade of a saw. The thin, sharp part of a colter. The bit of a key. 7. <machinery> A plate or thin portion, continuous or perforated, connecting stiffening ribs or flanges, or other parts of an object. Specifically: The thin vertical plate or portion connecting the upper and lower flanges of an lower flanges of an iron girder, rolled beam, or railroad rail. A disk or solid construction serving, instead of spokes, for connecting the rim and hub, in some kinds of car wheels, sheaves, etc. The arm of a crank between the shaft and the wrist. The part of a blackmith's anvil between the face and the foot. 8. <ophthalmology> Pterygium; called also webeye. 9. <anatomy, ornithology> The membrane which unites the fingers or toes, either at their bases, as in man, or for a greater part of their length, as in many water birds and amphibians. 10. <zoology> The series of barbs implanted on each side of the shaft of a feather, whether stiff and united together by barbules, as in ordinary feathers, or soft and separate, as in downy feathers. See Feather. <medicine> Pin and web, the system of braces connecting the flanges of a lattice girder, post, or the like. Origin: OE. Web, AS. Webb; akin to D. Web, webbe, OHG. Weppi, G. Gewebe, Icel. Vefr, Sw. Vaf, Dan. Vaev. See Weave. Source: Websters Dictionary (01 Mar 1998) |
| web eye | <medicine> See Web. Source: Websters Dictionary (01 Mar 1998) Previous: Weber's syndrome, Weber's test for hearing, Weber's triangle, Weber, WilhelmNext: web eye, webfoot, webform, web of fingers/toes, webster, websteriteweb eye pterygium |
| web of fingers/toes | One of the folds of skin, or rudimentary web, between the fingers and toes. Synonym: interdigital folds, plica interdigitalis. (05 Mar 2000) |
| spider's web | <zoology> The silken web which is formed by most kinds of spiders, particularly the web spun to entrap their prey. See Geometric spider, Triangle spider, under Geometric, and Triangle. Source: Websters Dictionary (01 Mar 1998) |
| oesophageal web | A cribriform or web formation in the oesophagus caused by an irregular atrophy. (05 Mar 2000) |
| terminal web | <cell biology> The cytoplasmic region at the base of microvilli in intestinal epithelial cells, a region rich in microfilaments from the microvillar core and from adherens junctions, in myosin and in other proteins characteristic of an actomyosin motor system. (13 Jan 1998) |
| trophic web | <biology> Feeding relationships in communities that determine the flow of energy and materials from plants to herbivores, carnivores and scavengers. (09 Oct 1997) |
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