ootype


ootype
The central portion of the ovarian complex of trematodes and cestodes in which fertilization takes place and the vitellarian or eggshell materials are coated over the egg; this occurs in a rapid, stamping-mill sequence, after which eggs pass into the uterus for tanning of the shell, storage, and passage toward the genital pore. [G. oon, egg, + typos, stamp, print]

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oo·type -.tīp n the part of the oviduct of most flatworms in which the eggs are furnished with a shell

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oo·type (oґo-tīp) [oo- + Gr. typos impression] in some trematodes, a dilated portion of the uterus into which the oviduct opens and where the ovum is fertilized, provided with the yolk, and invested with a shell.

Medical dictionary. 2011.

Look at other dictionaries:

  • Ootype — O [ o]*type, n. [Gr. ? + type.] (Zo[ o]l.) The part of the oviduct of certain trematode worms in which the ova are completed and furnished with a shell. [1913 Webster] …   The Collaborative International Dictionary of English

  • ootype — ˈōəˌtīp noun ( s) Etymology: o + type : the part of the oviduct of most flatworms in which the eggs are furnished with a shell * * * ootype, ooxanthine see oo …   Useful english dictionary

  • ootype — n. [Gr. oion, egg; typos, type] (PLATYHELMINTHES: Trematoda) A small chamber of the female duct, surrounded by Mehlis glands, where ducts from a seminal receptacle and vitelline reservoir join …   Dictionary of invertebrate zoology

  • ootype — oo·type …   English syllables

  • ooxanthine — ootype, ooxanthine see oo …   Useful english dictionary

  • Schistosoma mansoni — Taxobox name = Schistosoma mansoni image width = 200px image caption = Schistosomes encopula regnum = Animalia phylum = Platyhelminthes classis = Trematoda subclassis = Digenea ordo = Strigeidida genus = Schistosoma species = S. mansoni binomial …   Wikipedia

  • Digenea — For the bird genus, see Anthipes. Digenea Helicometra sp. (Plagiorchiida: Opecoelidae) from the intestine of a Flame Cardinal fish Scientific classification …   Wikipedia

  • common vitelline duct — (PLATYHELMINTHES: Turbellaria) Connects the vitelline ducts to the ootype …   Dictionary of invertebrate zoology

  • Mehlis' glands — (PLATYHELMINTHES: Trematoda) Unicellular mucous and serous glands surrounding the ootype in the reproductive system …   Dictionary of invertebrate zoology

  • canal — A duct or channel; a tubular structure. SEE ALSO: c., duct. SYN: canalis [TA]. [L. canalis] abdominal c. SYN: inguinal c.. accessory c. a channel leading from the root …   Medical dictionary


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