File:Stage9 bf2-primordial germ cell region.jpg
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Human Embryo (stage 9)
Carnegie Stage 9, week 3, day 20, somites 3-4
Ventrolateral view (cut away from chorion and amniotic sac) showing the embryo and yolk sac.
Green highlighted region shows the hind gut-yolk sac junctional region where primordial germ cells are thought to initially reside before migrating into the genital ridge.
Note also:
- the relative size of the embryo and the associated extra-embryonic coeloms.
- the shape of the early folded embryonic disc and rostro-caudal bendings.
- the relative thicknesses of the embryo and extra-embryonic membranes.
- the position of the prechordal plate (cardiogenic region) ventral to brain fold.
Page Links: Carnegie stage 9 | Week 3 | Primordial Germ Cell Development | Gastrulation
- Carnegie Stages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | About Stages | Timeline
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.
Image version links: Large 1000px | 800px | Medium 600px | Small 400px
Cite this page: Hill, M.A. (2024, April 25) Embryology Stage9 bf2-primordial germ cell region.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Stage9_bf2-primordial_germ_cell_region.jpg
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
Original file name: Stage9day20somites3-4lateralbf2v2.jpg
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:49, 29 May 2011 | 814 × 1,000 (72 KB) | S8600021 (talk | contribs) | == Human Embryo (stage 9)== Stage 9, week 3, day 20, somites 3-4 Ventrolateral view (cut away from chorion and amniotic sac) showing the embryo and yolk sac. Note: # the relative size of the embryo and the associated extra-embryonic coeloms. # the sh |
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File usage
The following 12 pages use this file:
- 2011 Lab 8 - Sex Determination
- ANAT2341 Lab 8 - Sex Determination
- BGDB Sexual Differentiation - Sex Determination
- BGD Lecture - Sexual Differentiation
- Carnegie stage 9
- Human Embryo SEM
- Lecture - Genital Development
- Primordial Germ Cell Development
- REI - Reproductive Medicine Seminar 2018
- Royal Hospital for Women - Reproductive Medicine Seminar 2018
- Y
- Talk:ANAT2341 Lab 1 - Sex Determination