UNSW Embryology

Carnegie Stage 15

© Dr Mark Hill (2008)

Acknowledgements

Carnegie Stage 15 Facts: Week 5, 35 - 38 days, 7 - 9 mm View: Lateral view. Amniotic membrane removed. Features: Identify: midbrain region, nasal pit, lens pit, 1st, 2nd and 3rd pharyngeal arches, 1st pharyngeal groove, maxillary and mandibular components of 1st pharyngeal arch, fourth ventricle of brain, heart prominence, cervical sinus, upper limb bud, mesonephric ridge, lower limb bud, umbilical cord Labelled Stage 15

Events

Ectoderm: sensory placodes, lens pit, otocyst, nasal pit, primary/secondary vesicles, fourth ventricle of brain,

Mesoderm: heart prominence

Head: 1st, 2nd and 3rd pharyngeal arch, forebrain, site of lens placode, site of otic placode, stomodeum

Body: heart, liver, umbilical cord, mesonephric ridge

Limb: upper and lower limb buds, hand plate

Next - Carnegie Stages 16

Stage 16 Unlabelled | Stage 16 Labelled

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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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