Category:Carnegie Embryo 6900

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This Embryology category includes pages and images that relate to the Carnegie Collection Embryo No. 6900 and classified as Stage 6 occurring during Week 2.

Stage 6 Links: Week 2 | Implantation | Lecture | Practical | Carnegie Embryos | Category:Carnegie Stage 6 | Next Stage 7
  Historic Papers: 1909 | 1925 | 1937


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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


Serial No. Grade Fixative Embedding Medium Thinness (µm) Stain Year Notes
6900 Poor Formol P 15 (Stain - Haematoxylin Eosin) 1940 Linzenmeier (1914)
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


Carnegie Collection - Stage 6 
Serial No. Grade Fixative Embedding Medium Thinness (µm) Stain Year Notes
6026 Poor ? ? 6? (Stain - Haematoxylin Eosin) 1929 Lockyer embryo. Abnormal. Ramsey (1937)
6734 Poor Zenker—acetic P 10 (Stain - Haematoxylin Eosin) 1934 Yale embryo. Ramsey (1938)
6900 Poor Formol P 15 (Stain - Haematoxylin Eosin) 1940 Linzenmeier (1914)
7634 Poor Formol P 10 (Stain - Haematoxylin Eosin) etc. 1940 Torpin embryo. Kraflca (1941)
7762 Good Zenker—formol P 8 ? 1940 Wilson (1945)
7800 Exc. ? C—P 8 (Stain - Haematoxylin Eosin) 1940 Abnormal
7801 Exc. Bouin C—P 8 (Stain - Haematoxylin Eosin) 1940 Heuser et al. (1945)
7850 Exc. Alc. & Bouin C—P 6 (Stain - Haematoxylin Eosin) 1940 Abnormal
8290 Exc. Bouin C—P 8 H. phlox. 1944
8360 Exc. Alc. & Bouin C—P 6 (Stain - Haematoxylin Eosin), phlox. 1944
8362 Poor p C—P 6 (Stain - Haematoxylin Eosin), phlox 1944
8672 Exc. Ale. & Bouin C—P 6 (Stain - Haematoxylin Eosin) 1949
8819 Exc. Formol—chrom. subl. C—P 8 (Stain - Haematoxylin Eosin) 1951 Edwards-Jones-Brewer (H1496). Brewer (1937, 38)[1][2]
8905 Poor Ale. p 6 (Stain - Haematoxylin Eosin), phlox. 1951 Abnormal
8910 Good Formol C—P 8 (Stain - Haematoxylin Eosin), phlox. 1951
9222 Good Bouin C—P 6 & 10 Azan 1954 Abnormal. Possibly stage 7
9250 Exc. Bouin p 8 (Stain - Haematoxylin Eosin) 1954
9595 Poor p p 8 (Stain - Haematoxylin Eosin) 1958
10003 Good Bouin p 5 Various 1963
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. ↑ Brewer JI. A normal human ovum in a stage preceding the primitive streak (The Edwards-Jones-Brewer ovum). (1937) Amer. J Anat., 61: 429-481.
  2. ↑ Brewer JI. A human embryo in the bilaminar blastodisc stage (The Edwards-Jones-Brewer ovum). (1938) Contrib. Embryol., Carnegie Inst. Wash. Publ. 496, 27: 85-93.

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