Carnegie stage 10: Difference between revisions

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==Additional Images==
==Additional Images==

Revision as of 12:18, 20 August 2016

Embryology - 28 Mar 2024    Facebook link Pinterest link Twitter link  Expand to Translate  
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Introduction

Stage10 bf1c.jpg

Facts

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

Gestational Age GA - week 6

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

Summary

  • 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)

See also Events

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.


Links: Week 4 | Gastrulation | Lecture | Practical | Carnegie stage 10 image gallery | Category:Carnegie Stage 10 | Stage 11
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
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

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

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.

Early Late
Stage10 bf4.jpg Stage10 bf5.jpg Stage10 bf6.jpg

Stage10 bf10.jpg

Stage 10 Embryo (12202) - transverse section  

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.

Carnegie Collection

Stage10 bf7.jpg Stage10 bf8.jpg Stage10 bf9.jpg Stage10 bf10.jpg


iBook - Carnegie Embryos  
link=http://itunes.apple.com/au/book/the-carnegie-staged-embryos/id510004473?mt=11 iTunes link
  • iTunes link | iBook Store
  • Description - Imagine the excitement of seeing this incredible early period of human development for the first time. Now consider that much of our initial understanding of human development is based upon study of historic embryo collections. You can now look at these historic images of the first 8 weeks after fertilisation and explore for yourself the changes that occur in human development during this key period. This current book is designed as an atlas of the Carnegie embryo stages with some brief notes and additional information covering the first 8 weeks of development. These images are from from the beginning of last century and are one of the earliest documented series of human embryos collected for basic research and medical education on development. I hope you enjoy learning about the amazing early events that begin to make and shape us. This is the second book in a series of educational releases from UNSW Embryology.
  • Release: First Edition - Mar 12, 2012 ISBN 978-0-7334-3148-7 Print Length 82 Pages, 25.8 MB Language English.
  • PDF Preview version 3.87 MB (Read the associated information, this is an edited educational preview version with many features not functioning).
  • The current website also includes numerous embryo images from this textbook (see Embryonic Development and Carnegie Embryos).


Events

  • hearing - 10 somites first indication of otic placode invagination[1] 12 somites cells migrate from the otic disc.[2]
  • Vision - optic primordia appear.[3]


References

Additional Images

Historic

Dandy WE. A Human Embryo with Seven Pairs of Somites Measuring about 2 mm in Length. (1910) Amer. J. Anat., 10, 85-109.

Baxter JS. and Boyd JD. Observations on The Neural Crest of a Ten-Somite Human Embryo (1939) J Anat. 73:318–326. PMID 17104759

Heuser CH. and Corner GW. Developmental horizons in human embryos. Description of age group X, 4 to 12 somites. (1957) Carnegie Instn Wash Publ 611, Contrib. Embryol., 36: 29-39.


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 28) 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 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G