File:Stage7-sem5.jpg

From Embryology

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Human Embryo Carnegie stage 7 - Primitive Streak

17 days, pre-somite, scanning electron micrograph image

Selected region of embryonic disc (epiblast/ectoderm layer) dorsal view, with amniotic membrane partially removed.

Primitive node (Henson's node) in centre of disc and primitive streak, shown as indentation in disc is extending to the left.

Scale bar 10 microns


See also: Stage7-sem4.jpg image cropped and new scale bar added | Stage7-sem3.jpg original image


Image Source: Scanning electron micrographs of the Carnegie stages of the early human embryos are reproduced with the permission of Prof Kathy Sulik, from embryos collected by Dr. Vekemans and Tania Attié-Bitach. Images are for educational purposes only and cannot be reproduced electronically or in writing without permission.

Embryonic Development



Cite this page: Hill, M.A. (2024, April 25) Embryology Stage7-sem5.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Stage7-sem5.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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current13:36, 21 August 2009Thumbnail for version as of 13:36, 21 August 20091,000 × 735 (202 KB)MarkHill (talk | contribs)Human Embryo Carnegie stage 7, 17 days, pre-somite, scanning electron micrograph image Selected region of embryonic disc (epiblast/ectoderm layer) dorsal view, with amniotic membrane partially removed. Primitive node (Henson's node) in centre of disc a