UNSW Embryology

Carnegie Stage 22

© Dr Mark Hill (2008)

Acknowledgements

Carnegie Stage 22 labelled

Carnegie Stage 22 (day 54)

Features: scalp vascular plexus, eylid, eye, nose, auricle of external ear, arm, elbow, wrist, knee, notch between digital rays, umbilical cord

Additional Information

Limbs: Muscle development - striated pattern of myofilaments appears and tubular structures around them and near the plasma membrane. Tanaka O, Shinohara H, Oguni M, Yoshioka T. Ultrastructure of developing muscle in the upper limbs of the human embryo and fetus. Anat Rec. 1995 Mar;241(3):417-24

Carnegie Stage 22

Carnegie Stages 23

Stage 23 Unlabelled | Stage 23 Labelled

Glossary of Terms

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Carnegie Stage images

The Kyoto Collection images are reproduced with the permission of Prof. Kohei Shiota for tutorial/revision purposes and cannot be reproduced electronically or in writing without permission.

UNSW Embryology ISBN: 978 0 7334 2609 4

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