pituitary portal system

pituitary portal system
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

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hypothalamo-hypophysial portal s.

Medical dictionary. 2011.

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  • 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

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

  • 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

  • hypothalamo-hypophysial portal system — the venules connecting the capillaries (gomitoli) in the median eminence of the hypothalamus with the sinusoidal capillaries of the adenohypophysis. See venae portales hypophysiales. Called also hypophysial portal or hypophysioportal circulation …   Medical dictionary

  • Pituitary gland — Infobox Anatomy Name = PAGENAME Latin = hypophysis, glandula pituitaria GraySubject = 275 GrayPage = 1275 Caption = Located at the base of the brain, the pituitary gland is protected by a bony structure called the sella turcica(also known as… …   Wikipedia

  • portal circulation —    This is a type of circulatory bypass used when substances in blood or fluid need to be kept out of the general flow. A portal system begins in capillaries and ends in capillaries, and nothing leaves it undocumented. The hypothalamus sends… …   Herbal-medical glossary

  • pituitary —    An endocrine gland somewhat behind the eyes and suspended from the front of the brain. The front section, the anterior pituitary, makes and secretes a number of controlling hormones that affect the rate of oxidation; the preference for fats,… …   Herbal-medical glossary

  • pituitary gland — Anat. a small, somewhat cherry shaped double structure attached by a stalk to the base of the brain and constituting the master endocrine gland affecting all hormonal functions in the body, consisting of an anterior region (anterior pituitary or… …   Universalium

  • endocrine system, human — ▪ anatomy Introduction  group of ductless glands (gland) that regulate body processes by secreting chemical substances called hormones (hormone). Hormones act on nearby tissues or are carried in the bloodstream to act on specific target organs… …   Universalium

  • Hypothalamic-pituitary-gonadal axis — The hypothalamic pituitary gonadal axis (also HPTA) is a way of referring to the combined effects of the hypothalamus, pituitary gland, and gonads as if these individual endocrine glands were a single entity. Because these glands often behave in… …   Wikipedia

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