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Original file name: Stage12semneuropore.jpg
==Human Embryo Caudal Neuropore (Carnegie stage 12)==


'''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/stage12SEM.htm Embryology page Created: 2007]
This is an SEM image of the human embryo ([[Carnegie stage 12]], [[week 4]]) caudal end.


The neural tube is shown still open at the caudal neuropore (posterior neuropore).


===Carnegie Stages Link===
===Neural===
[[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]]
{{Neural Links}}


== 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.
===SEM Images===
{{Stage 12 SEM images}}


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.
===Stage 12===


== UNSW Embryology Links ==
{{Carnegie_stages}}


* [http://embryology.med.unsw.edu.au/wwwhuman/Stages/stage12.htm Embryology Carnegie stage 12 Created: 19.03.1999]
{{Carnegie_stage_table_1}}
* [http://embryology.med.unsw.edu.au/wwwhuman/Stages/carnegie.htm About the Carnegie Institute]


===Glossary Links===
{{Carnegie stage 12 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
===Reference===


[[Category:Human Embryo]] [[Category:Carnegie Stage]] [[Category:Week 4]] [[Category:Ectoderm]] [[Category:Neural]] [[Category:Week 3]] [[Category:Scanning EM]]
{{SEM}}
 
 
[[Category:Week 4]] [[Category:Ectoderm]] [[Category:Neural]]
[[Category:Carnegie Stage]] [[Category:Carnegie Stage 12]]

Latest revision as of 13:46, 19 May 2017

Human Embryo Caudal Neuropore (Carnegie stage 12)

This is an SEM image of the human embryo (Carnegie stage 12, week 4) caudal end.

The neural tube is shown still open at the caudal neuropore (posterior neuropore).

Neural

Neural Links: ectoderm | neural | neural crest | ventricular | sensory | Stage 22 | gliogenesis | neural fetal | Medicine Lecture - Neural | Lecture - Ectoderm | Lecture - Neural Crest | Lab - Early Neural | neural abnormalities | folic acid | iodine deficiency | Fetal Alcohol Syndrome | neural postnatal | neural examination | Histology | Historic Neural | Category:Neural


SEM Images

Stage 12 SEM Images: Bright Field 1 | Bright Field 3 | Bright Field 3 | SEM1 | SEM2 | SEM3 | SEM4 dorsolateral head and arches | SEM5 lateral head and arches | SEM6 ventrolateral head and arches | SEM7 lateral | SEM8 ventrolateral | SEM9 cloacal membrane | SEM9 labeled | Carnegie stage 12

Stage 12

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
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
Stage 12 Links: Week 4 | Somitogenesis | Placodes | Head | Lecture - Early Vascular | Lecture - Gastrointestinal | Lecture - Head Development | Science Practical - Gastrointestinal | Science Practical - Head | Carnegie Embryos | Category:Carnegie Stage 12 | Next Stage 13
  Historic Papers: 1907 Somites 23 | 1914 | 1914 somites 27 | 1926 Somites 22 | 1926 Precervical Sinus | 1928 Somites 23 | 1937 Somites 25

Reference

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

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