File:Stage16-17-limbs01.jpg

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Human Embryo Carnegie Stage 16 and 17 Limbs

Limbs Week 8 stage 20-23

This image of two stages during Week 6 (GA week 8) of development compares the upper and lower limb development at this time.

  • Hand and foot plates well developed.
    • Rostro-caudal alignment of both hand and foot plates.
    • Stage 17 embryo - the beginning of digital ray development in the upper limb bud hand plate.
  • The lower limb bud appears less developed at each embryo stage.
    • Features that appear on the upper limb appear on the lower limb about 2 days later.


Facts: Week 6

View: Lateral view (left). Amniotic membrane removed. Comparative stage images are not shown to scale.

Features: developing arm with hand plate, foot plate


Links: :Links:: Limbs stage 16-17 | Limbs stage 20-23 | Carnegie stage 16 | Carnegie stage 17 | Limb Development


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, June 20) Embryology Stage16-17-limbs01.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Stage16-17-limbs01.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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