UNSW Embryology

Early Human Stages

Carnegie Stage 12 Labelled

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This material is from the Kyoto Collection and is reproduced with the permission of Prof. Kohei Shiota for tutorial/revision purposes and cannot be reproduced electronically or in writing without permission.

Stage 12 (day26, 27 somites)

forebrain

site of lens placode

site of otic placode

stomodeum

1st pharyngeal arch

2nd pharyngeal arch

3rdpharyngeal arch

heart prominence

somite