File:Stage7 primitive streak labelled.jpg: Difference between revisions

Revision as of 18:49, 10 September 2009

Human Embryonic disc (Carnegie stage 7) viewed from amniotic side showing the primitive streak labelled.

Gastrulation occurs through the primitive streak cells migrate continuously through week 3 into week 4. Initial cells replace hypoblast as an epithelial layer the endoderm. Later migrating cells spread between the two epithelial layers to form mesoderm.

Facts: Week 3, 15 - 17 days, 0.4 mm UNSW Embryology Carnegie Stage 7

Image source: The Kyoto Collection images are reproduced with the permission of Prof. Kohei Shiota and Prof. Shigehito Yamada, Anatomy and Developmental Biology, Kyoto University Graduate School of Medicine, Kyoto, Japan for educational purposes only and cannot be reproduced electronically or in writing without permission.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	13:30, 3 August 2009		500 × 375 (13 KB)	MarkHill (talk \| contribs)	Human Embryonic disc (Carnegie stage 7) viewed from amniotic side showing the primitive streak labelled. Gastrulation occurs through the primitive streak cells migrate continuously through week 3 into week 4. Initial cells replace hypoblast as an epithel

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 Facts: Week 3, 15 - 17 days, 0.4 mm [http://embryology.med.unsw.edu.au/wwwhuman/Stages/stage7.htm UNSW Embryology Carnegie Stage 7]
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 [[Category:Human Embryo]] [[Category:Carnegie Stage]] [[Category:Carnegie Stage 7]] [[Category:Week 3]] [[Category:Gastrulation]]