Category:Carnegie Embryo 1878: Difference between revisions

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This {{Embryology}} category relates to the Carnegie Collection Embryo No. 1878. This embryo was classified as [[Carnegie stage 9|'''Stage 9''']] occurring during [[Week 3]].
This {{Embryology}} category relates to the Carnegie Collection Embryo No. 1878. This embryo was classified as [[Carnegie stage 9|'''Stage 9''']] occurring during [[Week 3]].
 
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[[Carnegie stage 9]]


{{Carnegie Collection stage 9 table}}
{{Carnegie Collection stage 9 table}}
{{Carnegie stage table 1}}
===References===
{{Ref-Ingalls1920}}
{{Ref-Bartelmez1923}}


[[Category:Carnegie Stage 9]]
[[Category:Carnegie Stage 9]]
[[Category:Week 3]]
[[Category:Week 3]]
[[Category:1910's]]
[[Category:1910's]]

Latest revision as of 10:54, 4 October 2017

This Embryology category relates to the Carnegie Collection Embryo No. 1878. This embryo was classified as Stage 9 occurring during Week 3.

Stage 9 Links: Week 3 | Gastrulation | Lecture | Somitogenesis | Lecture - Mesoderm | Lecture - Ectoderm | Lecture - Early Vascular | Science Practical | Carnegie Embryos | Category:Carnegie Stage 9 | Next Stage 10
  Historic Papers: 1920 | 1926 | 1945


Serial No. Pairs of somites Size (mm) Grade Fixative Embedding Medium Plane Thinness (µm) Stain Year Notes
1878 2-3 E., 1.38
Ch., 12X10.5X7.5		 Good Formol P Cor. 10 (Stain - Haematoxylin Eosin) 1917 Described by Ingalls (1920)


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
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

References

Ingalls NW. A human embryo at the beginning of segmentation, with special reference to the vascular system. (1920) Contrib. Embryol., Carnegie Inst. Wash. Publ. 274, 11: 61-90.

Bartelmez GW. The subdivisions of the neural folds in man. (1923) J. Comp. Neural., 35: 231-247.

Media in category 'Carnegie Embryo 1878'

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