metanephros


metanephros
metanephric, adj.
/met'euh nef"ros/, n., pl. metanephroi /-roy/. Embryol.
one of the three embryonic excretory organs of higher vertebrates, becoming the permanent and functional kidney. Cf. mesonephros, pronephros.
[1875-80; < NL < Gk meta- META- + nephrós kidney]

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      permanent kidney in reptiles, birds, and mammals, developing by the 10th week in human embryos from the lower part of the Wolffian duct, and replacing the embryonic structure called the mesonephros. It consists of a compact, paired organ containing many nephrons; a ureter separate from the Wolffian duct leads from the metanephros to the bladder.

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Universalium. 2010.

Look at other dictionaries:

  • métanéphros — ● métanéphros nom masculin (du grec nephros, rein) Troisième et dernière des structures embryonnaires à l origine du rein des vertébrés amniotes, desservie par l uretère secondaire. métanéphros [metanefʀos] n. m. ÉTYM. 1897; de méta , et grec… …   Encyclopédie Universelle

  • metanephros — METANEPHRÓS s.m. (biol.) Rinichiul definitiv care începe să funcţioneze la vertebratele amniote în stadiul de adult. [pr.: fros] – Din fr. métanéphros. Trimis de LauraGellner, 13.09.2007. Sursa: DEX 98 …   Dicționar Român

  • Metanephros — Met a*neph ros, n. [NL., fr. Gr. ? behind + ? kidney.] (Anat.) The most posterior of the three pairs of embryonic renal organs developed in many vertebrates. [1913 Webster] …   The Collaborative International Dictionary of English

  • Metanephros — Metanephros, s. Nieren …   Meyers Großes Konversations-Lexikon

  • Metanephros — ⇒ Nachniere …   Deutsch wörterbuch der biologie

  • metanephros — [met΄ə nef′räs΄] n. pl. metanephroi [met΄ə nef′roi΄] [ModL < META + Gr nephros, kidney: see NEPHRO ] the excretory organ lying behind the mesonephros in an embryo, which in mammals, reptiles, and birds develops into the permanent, or adult,… …   English World dictionary

  • Métanéphros — Le métanéphros est le troisième des trois appareils rénaux différents qui se succèdent pendant la vie utérine des vertébrés supérieurs (mammifères, oiseaux et reptiles). Il correspond au rein. Chez l embryon humain, il apparais durant la 3ème… …   Wikipédia en Français

  • Metanephros — galutinis inkstas statusas T sritis gyvūnų raida, augimas, ontogenezė, embriologija atitikmenys: lot. Metanephros ryšiai: platesnis terminas – šlapimo organai siauresnis terminas – galutinio inksto užuomazginė medžiaga siauresnis terminas –… …   Veterinarinės anatomijos, histologijos ir embriologijos terminai

  • Metanephros — galutinis inkstas statusas T sritis embriologija atitikmenys: lot. Metanephros ryšiai: platesnis terminas – inkstų sistema siauresnis terminas – galutinio inksto užuomazga siauresnis terminas – šlapimo ištekamasis vamzdelis siauresnis terminas –… …   Medicininės histologijos ir embriologijos vardynas

  • metanephros — noun (plural metanephroi) Etymology: New Latin, from meta + Greek nephros kidney more at nephritis Date: 1884 either member of the final and most caudal pair of the three successive pairs of vertebrate renal organs that functions as a permanent… …   New Collegiate Dictionary


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