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Allantois

Allantois

An embryonic diverticulum of the hindgut of reptiles, birds, and mammals; in man its blood vessels give rise to those of the umbilical cord.


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Extraembryonic Membranes

does anyone know exactly how the four membranes amnion yolk sac chorion, and allantois work to protect the embryo and egg?

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by vlc1500
Wed Mar 07, 2007 1:32 am
 
Forum: Zoology Discussion
Topic: Extraembryonic Membranes
Replies: 6
Views: 9263

Extraembryonic Membranes

Extraembryonic Membranes The embryos of reptiles, birds, and mammals produce 4 extraembryonic membranes: amnion yolk sac chorion, and allantois With these four membranes, the developing embryo is able to carry on essential metabolism while sealed within the egg . Surrounded by amniotic fluid, ...

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by dipjyoti
Sun Feb 18, 2007 11:05 am
 
Forum: Zoology Discussion
Topic: Extraembryonic Membranes
Replies: 6
Views: 9263

embryo

... is/are paired in your embryo model?,,,,(we make a model of an embryo in an upcoming lab..so I guess this refers to "real life") 1)Allantois 2)Pharyngeal pouch 3)Hindbrain 4)Aortic arch 5)Common cardinal vein Thank you very much biology_06er

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by biology_06er
Mon Mar 27, 2006 5:20 am
 
Forum: Human Biology
Topic: embryo
Replies: 1
Views: 1572


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