Carnegie stage 13: Difference between revisions
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
== Introduction == | |||
[[File:Stage13 sem1c.jpg|left]] | [[File:Stage13 sem1c.jpg|left]] | ||
===Facts=== | |||
Week 4, 26 - 30 days, 3 - 5 mm, Somite Number 21 - 29 | |||
===Events=== | |||
Ectoderm: Neural tube continues to close, Caudal neuropore closes, forebrain | Ectoderm: Neural tube continues to close, Caudal neuropore closes, forebrain | ||
| Line 22: | Line 18: | ||
heart, liver, umbilical, early upper limb bulge | heart, liver, umbilical, early upper limb bulge | ||
Features: day 26, 27 somites, forebrain, site of lens placode, site of otic placode , stomodeum, 1st pharyngeal arch, 2nd pharyngeal arch, 3rdpharyngeal arch, heart prominence, somite | |||
Identify: forebrain, site of lens placode, site of otic placode, stomodeum, 1st pharyngeal arch, 2nd pharyngeal arch, 3rd pharyngeal arch, heart prominence, somite | |||
== Bright Field == | |||
==Scanning EM== | |||
==Kyoto Collection== | |||
Image source: [http://embryology.med.unsw.edu.au/wwwhuman/Stages/stage13.htm Embryology page Created: 19.03.1999] | Image source: [http://embryology.med.unsw.edu.au/wwwhuman/Stages/stage13.htm Embryology page Created: 19.03.1999] | ||
{{Template:Carnegie_stages}} | {{Template:Carnegie_stages}} | ||
{{Template:SEM}} | |||
{{ | {{Kyoto collection}} | ||
{{Template:Footer}} | {{Template:Footer}} | ||
[[Category:Human Embryo]] [[Category:Carnegie Stage]] [[Category:Week 4]] | [[Category:Human Embryo]] [[Category:Carnegie Stage]] [[Category:Week 4]] | ||
Revision as of 21:35, 3 September 2009
Introduction
Facts
Week 4, 26 - 30 days, 3 - 5 mm, Somite Number 21 - 29
Events
Ectoderm: Neural tube continues to close, Caudal neuropore closes, forebrain
Mesoderm: continued segmentation of paraxial mesoderm (21 - 29 somite pairs), heart prominence
Head: 1st, 2nd and 3rd pharyngeal arch, forebrain, site of lens placode, site of otic placode, stomodeum
Body:
heart, liver, umbilical, early upper limb bulge
Features: day 26, 27 somites, forebrain, site of lens placode, site of otic placode , stomodeum, 1st pharyngeal arch, 2nd pharyngeal arch, 3rdpharyngeal arch, heart prominence, somite
Identify: forebrain, site of lens placode, site of otic placode, stomodeum, 1st pharyngeal arch, 2nd pharyngeal arch, 3rd pharyngeal arch, heart prominence, somite
Bright Field
Scanning EM
Kyoto Collection
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: Scanning electron micrographs of the Carnegie stages of the early human embryos are reproduced with the permission of Prof Kathy Sulik, from embryos collected by Dr. Vekemans and Tania Attié-Bitach. Images are for educational purposes only and cannot be reproduced electronically or in writing without permission.
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, June 1) Embryology Carnegie stage 13. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Carnegie_stage_13
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
