File:Stage11 sem9a.jpg

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Human Embryo Carnegie stage 11

Human Embryo Carnegie stage 11 (25 days, 19 somite pairs).

Stage 11 Facts: Week 4, 23 - 26 days, 2.5 - 4.5 mm, Somite Number 13 - 20

View: This is a scanning EM of the embryo ventral view showing the neuropore and heart tube.


Cranial neuropore (cephalic, rostral or anterior) is the initial "head end" or brain end opening of the neural tube before it closes (humans approximately 24 days post-fertilization).


Heart Links: Image day 21 to 25 | Image day 21 | Image day 25 | Carnegie stage 10 | Carnegie stage 11 | Cardiovascular System Development


Stage 11 SEM Images: dorsolateral whole embryo | dorsal embryo | lateral embryo | lateral head | lateral head with overlay | embryo cross-section | ventrolateral head | ventrolateral head with overlay | ventral head | buccopharyngeal membrane | neural crest | posterior neuropore | anterior neuropore | Carnegie stage 11


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


Image version links: Large 2000px | 1000px | Medium 800px


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

Cite this page: Hill, M.A. (2021, February 25) Embryology Stage11 sem9a.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Stage11_sem9a.jpg

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© Dr Mark Hill 2021, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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current20:05, 30 May 2011Thumbnail for version as of 20:05, 30 May 2011728 × 1,000 (145 KB)S8600021 (talk | contribs)==Human Embryo Carnegie stage 11== Carnegie stage 11 25 days, 19 somite pairs Facts: Week 4, 23 - 26 days, 2.5 - 4.5 mm, Somite Number 13 - 20 View: This is a scanning EM of the embryo ventral posterior view showing the neuropore. Features: surface ec