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Mesoderm: Somitogenesis, continued segmentation of paraxial mesoderm (4 - 12 somite pairs)
Mesoderm: Somitogenesis, continued segmentation of paraxial mesoderm (4 - 12 somite pairs)


'''Image Source:''' Prof Kathy Sulik scanning electron micrographs of the Carnegie stages of the early human embryo. UNSW Embryology, no reproduction without permission.  [http://embryology.med.unsw.edu.au/wwwhuman/Stages/Stagesem.htm Carnegie Stages - Scanning Electron Micrography] | [http://embryology.med.unsw.edu.au/wwwhuman/Stages/stage10SEM.htm Embryology page Created: 2007]
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{{Carnegie stage 10 links}}
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{{Carnegie_stage_table_1}}
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{{SEM}}
{{Carnegie_stages}}
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===Carnegie Stages Link===
[[Category:Carnegie Stage 10]]
[[Carnegie_stage_1|1]] | [[Carnegie_stage_3|3]] | [[Carnegie_stage_7|7]] | [[Carnegie_stage_8|8]] | [[Carnegie_stage_9|9]] | [[Carnegie_stage_10|10]] | [[Carnegie_stage_11|11]] | [[Carnegie_stage_12|12]] | [[Carnegie_stage_13|13]] | [[Carnegie_stage_14|14]] | [[Carnegie_stage_15|15]] | [[Carnegie_stage_16|16]] | [[Carnegie_stage_17|17]] | [[Carnegie_stage_18|18]] | [[Carnegie_stage_19|19]] | [[Carnegie_stage_20|20]] | [[Carnegie_stage_21|21]] | [[Carnegie_stage_22|22]] | [[Carnegie_stage_23|23]]
 
== About Carnegie Stages ==
 
Carnegie stages are named after the famous US Institute which began collecting and classifying embryos in the early 1900's. Stages are based on the external and/or internal morphological development of the embryo, and are not directly dependent on either age or size. The human embryonic period proper is divided into 23 Carnegie stages. Carnegie stages are based on the external and/or internal morphological development of the embryo, and are not directly dependent on either age or size. Criteria beyond morphological features include age in days, number of somites present, and embryonic length.
 
The Kyoto Collection images are reproduced with the permission of '''Prof. Kohei Shiota'''. Scanning electron micrographs of the Carnegie stages of the early human embryos are reproduced with the permission of '''Prof Kathy Sulik'''. Images are for educational tutorial/revision purposes and cannot be reproduced electronically or in writing without permission.
 
== UNSW Embryology Links ==
 
* [http://embryology.med.unsw.edu.au/wwwhuman/Stages/stage10.htm Embryology Carnegie stage 10 Created: 19.03.1999]
* [http://embryology.med.unsw.edu.au/wwwhuman/Stages/carnegie.htm About the Carnegie Institute]
 
===Glossary Links===
[[A|A]]  | [[B|B]] | [[C|C]] | [[D|D]] | [[E|E]] | [[F|F]] | [[G|G]] | [[H|H]] | [[I|I]] | [[J|J]] | [[K|K]] | [[L|L]] | [[M|M]] | [[N|N]] | [[O|O]] | [[P|P]] | [[Q|Q]] | [[R|R]] | [[S|S]] | [[T|T]] | [[U|U]] | [[V|V]] | [[W|W]] | [[X|X]] | [[Y|Y]] | [[Z|Z]]
 
:Dr Mark Hill 2009, '''''UNSW Embryology''''' ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
 
[[Category:Human Embryo]] [[Category:Carnegie Stage]] [[Category:Week 4]] [[Category:Ectoderm]] [[Category:Neural]] [[Category:Week 3]] [[Category:Scanning EM]]

Latest revision as of 19:15, 28 May 2017

Carnegie Stages 10, 4-5 somites

MH - This description requires checking

Facts: Week 4, 22 - 23 days, 2 - 3.5 mm, Somite Number 4 - 12

View: This is a dorsal view of the embryo. Amniotic membrane removed.

Features: Somite Number 4 - 12, rostral neuropore, neural folds in region of developing brain, neural tube, somites, caudal neuropore, neural fold fuses, remnant of amniotic sac


Identify: rostral neuropore, neural folds in region of developing brain, neural tube, somites (note the different number formed), caudal neuropore, neural fold fuses, cut edge of amniotic sac

Events Ectoderm: Neural fold deeepens, edges approach midline, neural fold fuses, neural plate folds ventrally in brain region

Mesoderm: Somitogenesis, continued segmentation of paraxial mesoderm (4 - 12 somite pairs)


Stage 10 Links: Week 4 | Gastrulation | Lecture | Practical | Image Gallery | Carnegie Embryos | Embryos | Category:Carnegie Stage 10 | Next Stage 11
  Historic Papers: 1910 | 1917 | 1926 | 1939 | 1943 | 1957 | 1985


Week: 1 2 3 4 5 6 7 8
Carnegie stage: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23


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.

Embryonic Development

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

Cite this page: Hill, M.A. (2024, March 29) Embryology Stage10 SEM1.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Stage10_SEM1.jpg

What Links Here?
© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

File history

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Date/TimeThumbnailDimensionsUserComment
current16:32, 10 August 2009Thumbnail for version as of 16:32, 10 August 2009277 × 450 (28 KB)MarkHill (talk | contribs)Carnegie Stages 10, 4-5 somites Features: brain fold, neural groove, amniotic sac, presomitic mesoderm, embryonic disc, primitive node, primative streak, primative groove, connecting stalk Facts: Week 3, 21 days, 4 - 5 somites, View: Dorsal view amnioti