Difference between revisions of "Carnegie stage 10"

From Embryology
(Bright Field)
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'''Introduction'''
 
'''Introduction'''
 
[[File:Stage10 bf1c.jpg|left]]
 
[[File:Stage10 bf1c.jpg|left]]
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Facts: Week 4, 22 - 23 days, 2 - 3.5 mm, Somite Number 4 - 12
 
Facts: Week 4, 22 - 23 days, 2 - 3.5 mm, Somite Number 4 - 12
  
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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
 
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
  
(note there are 2 separate images of this stage)
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See also [[Carnegie_stage_10 gallery|Carnegie stage 10 image gallery]] | [http://embryology.med.unsw.edu.au/wwwhuman/Stages/stage10.htm original Stage 10]
  
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
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=== Events ===
  
 
Events
 
 
Ectoderm: Neural fold deeepens, edges approach midline, neural fold fuses, neural plate folds ventrally in brain region
 
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)
 
Mesoderm: Somitogenesis, continued segmentation of paraxial mesoderm (4 - 12 somite pairs)
  
Image source: [http://embryology.med.unsw.edu.au/wwwhuman/Stages/stage10.htm Embryology page Created: 19.03.1999]
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===Identify===
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The 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.
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Revision as of 13:40, 23 August 2009

Introduction

Stage10 bf1c.jpg

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

View: This is a dorsal view of the embryo. Top embryo is an early stage 10, bottom is late stage 10. 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

See also Carnegie stage 10 image gallery | original Stage 10

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)

Identify

The 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.


Bright Field

Stage10 bf2c.jpg Stage10 bf3.jpg

Scanning EM

Stage10 sem1.jpg

Stage10 sem2.jpg

Stage10 sem3.jpg Stage10 sem4.jpg

Stage10 sem5.jpg

Stage10 sem6.jpg

Stage10 sem7.jpg

Stage10 sem8.jpg


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.

Embryonic Development


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. (2019, December 10) Embryology Carnegie stage 10. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Carnegie_stage_10

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© Dr Mark Hill 2019, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G