vitellarium

vitellarium
In cestodes and trematodes, a common chamber receiving vitelline (yolk) material from the two vitelline ducts; the yolk material then passes into the ootype to surround the ovum with nutritive vitelline granules that are enclosed by a characteristically formed eggshell. SYN: vitelline reservoir.

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vi·tel·lar·i·um .vīt-əl-'ar-ē-əm n, pl -lar·ia -ē-ə a modified part of the ovary that in many flatworms and rotifers produces yolk-filled cells serving to nourish the true eggs

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vi·tel·la·ri·um (vi″tə-larґe-əm) an accessory genital gland found in flukes and tapeworms which secretes the yolk and shell for the fertilized egg; called also vitelline gland.

Medical dictionary. 2011.

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Look at other dictionaries:

  • Vitellarium —   [v ; zu lateinisch vitellus »Dotter«] das, s/...ri |en, der Dotterstock bei den Plattwürmern und Insekten (Eischläuche) …   Universal-Lexikon

  • Vitellarium — ⇒ Dotterstock …   Deutsch wörterbuch der biologie

  • vitellarium — n.; pl. ia [L. vitellus, yolk; arium, place for] 1. A yolk gland; a zone of growth. 2. (ARTHROPODA: Insecta) That part of an ovariole that contains the developing eggs. 3. (PLATYHELMINTHES) Glands which produce yolk material and possibly the… …   Dictionary of invertebrate zoology

  • vitellarium — vi·tel·lar·i·um (vīt l ârʹē əm, vĭt ) n. pl. vi·tel·lar·i·ums or vi·tel·lar·i·a ( ē ə) A group of glands that secrete yolk around the egg in those invertebrates, such as worms, whose eggs do not contain yolk.   [New Latin, from Latin vitellus,… …   Universalium

  • vitellarium — vitel·lar·i·um …   English syllables

  • vitellarium — …   Useful english dictionary

  • vitelline gland — vitellarium …   Medical dictionary

  • INSECTES — Le terme «Insecte» a longtemps désigné tous les Arthropodes à six pattes, mais cette définition a évolué au cours des années 1980. Le terme Insecte au sens large a été remplacé par celui d’Hexapode et les Insectes ne désignent plus qu’une classe… …   Encyclopédie Universelle

  • Rotifer — Rotifera Temporal range: Eocene–Recent …   Wikipedia

  • Cyclophyllidea — Scientific classification Kingdom: Animalia Phylum: Platyhelminthes …   Wikipedia

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