File:Stage6 bf03.jpg

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Human Embryo Carnegie Stage 6

Carnegie Collection Embryo No.7801

This is a section through the human stage 6 conceptus showing development of the bilaminar (two layer) embryo and the early extra-embryonic coeloms (spaces).

Bilaminar embryo

  1. epiblast - thickened columnar epithelium.
  2. hypoblast -squamous epithelium.

Extra-embryonic coelom

  1. amnion - lying above the epiblast later.
  2. chorion - lying outside the primitive yolk sac.


Carnegie stage 6: Embryo No.7801 - embryonic disc | Labeled | Embryo No.7801 - primitive streak
Facts
  • about 13 - 13.5 days
  • Embryonic disc - 0.04 x 0.22 x 0.253 mm
  • Chorion - 2.6 x 1.9 x 1.4 mm
  • Chorionic cavity - 1.3 x 1.1 x 0.8 mm


Stage 6 Links: Week 2 | Implantation | Lecture | Practical | Carnegie Embryos | Category:Carnegie Stage 6 | Next Stage 7
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Reference

Image modified from

Heuser CH. Rock J. and Hertig AT. Two human embryos showing early stages of the definitive yolk sac. (1945) Contrib. Embryol., Carnegie Inst. Wash. Publ. 557, 31: 85-99.



Cite this page: Hill, M.A. (2024, May 25) Embryology Stage6 bf03.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Stage6_bf03.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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current06:26, 25 October 2011Thumbnail for version as of 06:26, 25 October 2011646 × 800 (65 KB)S8600021 (talk | contribs)==Human Embryo Carnegie Stage 6== Carnegie Collection Embryo No.7801 * about 13 - 13.5 days * Embryonic disc - 0.04 x 0.22 x 0.253 mm * Chorion - 2.6 x 1.9 x 1.4 mm * Chorionic cavity - 1.3 x 1.1 x 0.8 mm {{Carnegie Embryo Stage6}} {{Template:Carnegie_