File:Stage14 bf27.jpg
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Human Embryo Carnegie Stage 14
- Embryo amniotic membrane removed
- Larger cavity is chorionic space (coelom).
- Small sac at left connected to umbilical region is the yolk sac.
- Placental villi are visible outside chorionic membrane.
- Placental blood vessels are visible extending lower left from umbilicus.
Stage 14
- Week 5, 31 - 35 days, 5 - 7 mm
- Gestational Age GA week 7
- Mesoderm: continued segmentation of paraxial mesoderm (30+ somite pairs), heart prominence
- Head: 1st, 2nd and 3rd pharyngeal arch, forebrain, site of lens placode, site of otic placode, stomodeum
- Body: heart, liver, umbilical, upper and early lower limb bud
- 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: 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.
Cite this page: Hill, M.A. (2024, April 25) Embryology Stage14 bf27.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Stage14_bf27.jpg
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
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| current | 22:02, 14 June 2016 | | 1,000 × 1,291 (208 KB) | Z8600021 (talk | contribs) |
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