UNSW Embryology

Carnegie Stage 19

© Dr Mark Hill (2008)

Acknowledgements

	Carnegie Stage 19 Facts: Week 7, 48 - 51 days, 16 - 18 mm View: Lateral view. Amniotic membrane removed. Features: eyelid, eye, external acoustic meatus, auricle of external ear, digital ray, wrist, liver prominence Identify: straightening of trunk, pigmented eye, eyelid, external acoustic meatus, digital rays, liver prominance, thigh, ankle, foot plate, umbilical cord Labelled Stage 19

Events

Ectoderm: sensory placodes, lens pit, otocyst, nasal pits moved ventrally, fourth ventricle of brain

Mesoderm: heart prominence, ossification continues

Head: forebrain, eye, external acoustic meatus

Body:straightening of trunk, heart, liver, umbilical cord

Limb: upper and lower limb buds, foot plate with digital rays, wrist, hand plate digital rays begin to separate

Next - Carnegie Stages 20

Stage 20 Unlabelled | Stage 20 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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