Category:Carnegie Stage 9: Difference between revisions

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:'''Links:''' [[Carnegie stage 9]] | [[Week 3]]
:'''Links:''' [[Carnegie stage 9]] | [[Week 3]]
{{Carnegie Collection stage 9 table}}




[[Category:Carnegie Stage]] [[Category:Week 3]] [[Category:Human Embryo]]
[[Category:Carnegie Stage]] [[Category:Week 3]] [[Category:Human Embryo]]

Revision as of 09:48, 29 August 2015

This Embryology category shows pages and media related to Carnegie stage 9 of embryonic development. In human development this stage occurs during week 3 (post-fertilisation) or gestational age GA week 5 (LMP).


Links: Carnegie stage 9 | Week 3


Carnegie Collection - Stage 9 
Serial No. Pairs of somites Size (mm) Grade Fixative Embedding Medium Plane Thinness (µm) Stain Year Notes
1878 2-3 Embryo, 1.38
Ch., 12x10.5x7.5		 Good Formalin P Coronal 10 (Stain - Haematoxylin Eosin) 1917 Described by Ingalls (1920).[1]
5080 1 Embryo, 1.5
Ch., 14.5		 Poor Formalin P Transverse 10 Al. coch. 1926 Studied by Davis (1927).[2]
7650 2-3 Embryo, 2-3 Good Alc & Bouin C-P Transverse 6 (Stain - Haematoxylin Eosin) 1939 Said to be female[3]
Abbreviations
  • Grade - total grade of the specimen and includes both its original quality and the condition of the mounted sections.
  • Embedding medium - paraffin (P) or a combination of celloidin and paraffin (C-P).
  • Fixative - formalin (Formol), alcohol and formalin (Alc, formol), Bouin (Bouin solution)
  • ? - unknown or not determined.
References
  1. ↑ Ingalls, N.W. 1920. A human embryo at the beginning of segmentation, with special reference to the vascular system. Carnegie Instn. Wash. Publ. 274, Contrib. Embryol., 11, 61-90.
  2. ↑ Davis, C. L. 1927. Development of the human heart from its first appearance to the stage found in embryos of twenty paired somites. Carnegie Instn. Wash. Publ 380, Contrib. Embryol., 19, 245-284.
  3. ↑ PARK WW. (1957). The occurrence of sex chromatin in early human and macaque embryos. J. Anat. , 91, 369-73. PMID: 13448995

Subcategories

This category has the following 4 subcategories, out of 4 total.

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Media in category 'Carnegie Stage 9'

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