Carnegie stage 22: Difference between revisions
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===Features=== | ===Features=== | ||
'''Identify:''' straightening of trunk, pigmented eye, eyelid, nose, external acoustic meatus, ear auricle, scalp vascular plexus, separated digits (fingers), thigh, ankle, umbilical cord | '''Identify:''' straightening of trunk, pigmented eye, eyelid, nose, external acoustic meatus, ear auricle, scalp vascular plexus, separated digits (fingers), thigh, ankle, umbilical cord | ||
See also the links to individual [http://embryology.med.unsw.edu.au/wwwhuman/lowpower/HumA/A1L.htm embryo slices] and the 3D reconstructions of this embryo stage. | See also the links to individual [http://embryology.med.unsw.edu.au/wwwhuman/lowpower/HumA/A1L.htm embryo slices] and the 3D reconstructions of this embryo stage. | ||
Revision as of 08:06, 19 November 2009
Introduction
Facts
Week 8, 54 - 56 days, 23 - 28 mm
Events
Ectoderm:
Mesoderm: heart prominence, ossification continues
Head: nose, eye, external acoustic meatus
Body:straightening of trunk, heart, liver, umbilical cord
Limb: upper limbs longer and bent at elbow, foot plate with webbed digits, wrist, hand plate with separated digits
Features
Identify: straightening of trunk, pigmented eye, eyelid, nose, external acoustic meatus, ear auricle, scalp vascular plexus, separated digits (fingers), thigh, ankle, umbilical cord
See also the links to individual embryo slices and the 3D reconstructions of this embryo stage.
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These 3d movies were part of the UNSW Medical degree Independent Learning Project (ILP) prepared by Aashish Kumar (2006).
- 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
Kyoto Collection
Lateral view. Amniotic membrane removed.
Image source: Embryology page Created: 19.03.1999
- 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, May 6) Embryology Carnegie stage 22. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Carnegie_stage_22
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
