Allantoic



of or relating to the .
Historical Examples

It was for a long time held that the Marsupials differed from all other mammals in having no allantoic placenta.
The Cambridge Natural History, Vol X., Mammalia Frank Evers Beddard

As the allantois increases in size and importance, the allantoic vessels are correspondingly developed.
The Works of Francis Maitland Balfour, Volume III (of 4) Francis Maitland Balfour

The allantoic arteries in the cord wind in a spiral manner round the allantoic vein.
The Works of Francis Maitland Balfour, Volume III (of 4) Francis Maitland Balfour

The intra-embryonic portion of the allantoic stalk gives rise to two structures, viz.
The Works of Francis Maitland Balfour, Volume III (of 4) Francis Maitland Balfour

The last of these can be dismissed, in consequence of the recent discovery of an allantoic placenta in Perameles.
The Cambridge Natural History, Vol X., Mammalia Frank Evers Beddard

In a somewhat older fœtus of ten lines in length there was a small allantois supplied by two allantoic arteries and one vein.
The Works of Francis Maitland Balfour, Volume III (of 4) Francis Maitland Balfour

The allantoic cavity persists (Owen), but the allantois only covers the placental area of the chorion.
The Works of Francis Maitland Balfour, Volume III (of 4) Francis Maitland Balfour

The allantoic sack is large, and covers the whole surface of the subzonal membrane.
The Works of Francis Maitland Balfour, Volume III (of 4) Francis Maitland Balfour

Krause maintains that all the other embryos shewing an allantoic stalk at an early age are pathological.
The Works of Francis Maitland Balfour, Volume III (of 4) Francis Maitland Balfour

The allantoic stalk, if present, was not clearly made out, and the condition of the amnion was also not fully studied.
The Works of Francis Maitland Balfour, Volume III (of 4) Francis Maitland Balfour

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  • Allantoic sac

    allantoic sac allantoic sac al·lan·to·ic sac (āl’ən-tō’ĭk, -ān-) n. The dilated distal portion of the allantois.

  • Allantoic vesicle

    allantoic vesicle allantoic vesicle n. The hollow part of the allantois.



  • Allantoic stalk

    allantoic stalk allantoic stalk n. The narrow connection between the intraembryonic portion of the allantois and the extraembryonic allantoic vesicle. Historical Examples Krause maintains that all the other embryos shewing an allantoic stalk at an early age are pathological. The Works of Francis Maitland Balfour, Volume III (of 4) Francis Maitland Balfour The intra-embryonic portion […]

  • Allantoid

    Also, allantoidal [al-uh n-toid-l] /ˌæl ənˈtɔɪd l/ (Show IPA). . the allantois. adjective relating to or resembling the allantois (botany) shaped like a sausage noun another name for allantois allantoid al·lan·toid (ə-lān’toid’) or al·lan·toid·al (āl’ən-toid’l) adj. Of or having an allantois. Shaped like a sausage. n. See allantois.



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