Difference between revisions of "Carnegie stage 10"

From Embryology
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== Bright Field ==
 
== Bright Field ==
 
[[File:Stage10 bf1c.jpg]] [[File:Stage10 bf2c.jpg]] [[File:Stage10 bf3.jpg|400px]]
 
[[File:Stage10 bf1c.jpg]] [[File:Stage10 bf2c.jpg]] [[File:Stage10 bf3.jpg|400px]]
[[File:Heart Tube Segments.jpg]]
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[[File:Heart Tube Segments.jpg|400px]]
  
 
== Scanning EM ==
 
== Scanning EM ==

Revision as of 23:51, 21 July 2010

Introduction

Stage10 bf1c.jpg

Facts

Week 4, 22 - 23 days, 2 - 3.5 mm, Somite number 4 - 12

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.

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

Bright Field

Stage10 bf1c.jpg Stage10 bf2c.jpg Stage10 bf3.jpg Heart Tube Segments.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

Stage10 sem9.jpg

Stage10 sem10.jpg

Kyoto Collection

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

View: This is a dorsal view of the human embryo, the amniotic membrane has been removed. Top embryo is an early stage 10, bottom is late stage 10.

Stage10 bf4b.jpg

Stage10 bf5b.jpg

Stage10 bf6b.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, November 21) 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