portal system
noun Etymology: portal vein Date: 1851 a system of veins that begins and ends in capillaries

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • portal system — n a system of veins that begins and ends in capillaries see HEPATIC PORTAL SYSTEM, PITUITARY PORTAL SYSTEM * * * a vein or group of veins that terminates at both ends in a capillary bed. The best known is the hepatic portal system, which consists …   Medical dictionary

  • portal system — a vein or group of veins that terminates at both ends in a capillary bed. The best known is the hepatic portal system, which consists of the portal vein and its tributaries (see illustration). Blood is drained from the spleen, stomach, pancreas,… …   The new mediacal dictionary

  • portal system — noun system of veins that carry blood from the abdominal organs to the liver • Hypernyms: ↑vascular system • Part Meronyms: ↑portal vein, ↑hepatic portal vein, ↑portal, ↑vena portae …   Useful english dictionary

  • portal system — Anat. 1. a vascular arrangement in which blood from the capillaries of one organ is transported to the capillaries of another organ by a connecting vein or veins. 2. (loosely) the hepatoportal system. [1850 55] * * * …   Universalium

  • portal system — por′tal sys tem n. anat. a vascular arrangement in which blood from the capillaries of one organ is transported to the capillaries of another organ by a connecting vein or veins • Etymology: 1850–55 …   From formal English to slang

  • Osiris (Serverless Portal System) — Osiris Serverless Portal System Osiris Developer(s) kodeware, srl Initial release March 17, 2010 …   Wikipedia

  • Hepatic portal system — In human anatomy, the hepatic portal system is the system of veins that comprises the hepatic portal vein and its tributaries. It is also called the portal venous system, although it is not the only example of a portal venous system.FunctionThe… …   Wikipedia

  • Hypophyseal portal system — Infobox Vein Name = PAGENAME Latin = GraySubject = GrayPage = Caption = Caption2 = DrainsFrom = Source = DrainsTo = Artery = MeshName = MeshNumber = DorlandsPre = s 33 DorlandsSuf = 12787512 The hypophyseal portal system (or hypothalamo… …   Wikipedia

  • pituitary portal system — n a portal system supplying blood to the anterior lobe of the pituitary gland through veins connecting the capillaries of the median eminence of the hypothalamus with those of the anterior lobe * * * hypothalamo hypophysial portal s …   Medical dictionary

  • hypothalamic hypophysial portal system — hypothalamic pituitary system, hypothalamic pituitary portal system hypothalamo hypophysial portal s …   Medical dictionary

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