Carnegie Embryo 4439

From Embryology

This Embryology category includes pages and images that relate to the Carnegie Collection Embryo No. 4439. This embryo was classified as Stage 10 with 9 somite pairs occurring during Week 4, GA week 6.


Originally Embryo “Du Ga,” Geneva. Described by Eternod (1896); models by Ziegler were distributed commercially. Cited by Bartelmez (1922) and Bartelmez and Evans (1926), with illustrations. Tracings made by H. M. Evans at Geneva and models are in the Carnegie Collection, No. 4439


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  Historic Papers: 1910 | 1917 | 1926 | 1939 | 1943 | 1957 | 1985


References

Eternod, ACF. Sur un ceuf humain de 16.3 mm. avec embryon de 2.11 mm, (uterus et annexes). (1896) Actes Soc. helvet sci. not., 79, 164-169.

Carnegie Collection - Stage 10 
Serial No. Pairs of somites Size (mm) Grade Fixative Embedding Medium Thinness (µm) Stain Year Notes
391 8 E, 2 Ch., 14 Good Formol P 10 Al. coch. 1907 Monograph by Dandy (1910)[1]
1201 7 E,2 Ch.. 144 Good Formol P 8 H. & or. G. 1915 Univ. Chicago No. H 87
2795 4-5 E,2 Poor Alc. P 6 Al coch,or.G. 1919
3707 12 E, 1 5 Good Formol P 12.5 I. H. 1921 Univ. Calif. No. H 197
3709 4 E. 1.4 Ch.. 14.8 Poor Formol P 10 Erythrosin 1921 Univ. Chicago No H 279
3710 12 E., 3.6 Ch., 19.0 Good Formol C-P 10 H. & or. G. 1921 Univ. Chicago No. H 392
4216 8 E, 2 Ch, 9.8 Good Formol P 15 ? 1923 Monograph by Payne (1925)[2]
5074 10 E., 3.3 Ch., 10.8 Exc. Bouin P 10 Al. coch. 1925 Univ. Rochester No. H 10. Monograph by Corner (1929)[3]
6330 7 E, 2.83 Good P 5 Ehr. H. 1931 Univ. Chicago No. H 1404
6740 12 E., 2.2 Good p C-P 8 ? 1933 Litzenberg embryo. Studied by Boyden (1940)
7251 8 E., 1.27 Good Formol C-P 10 (Stain - Haematoxylin Eosin) 1941 "Singapore embryo." Univ. Cambridge No. H 98.
Studied by Wilson (1914)[4]
8244 6 E., 1.55 Ch, 8,5 Good Alc. C-P 8 (Stain - Haematoxylin Eosin) phlox. 1944
9870 12 Ch, ca. 8 Good Zenker P 5 Various, chiefly carmine 1952 Univ. Chicago. No. H 637. Dicephaly
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.
  • All Carnegie stage 10 embryos are cut in Transverse plane.
  1. Dandy WE. A human embryo with seven pairs of somites measuring about 2 mm in length. (1910) Amer. J Anat. 10: 85-109.
  2. Payne, F. 1925. General description of a 7-somite human embryo. Carnegie Instn. Wash. Publ. 361, Contrib. Embryol., 16,115-124.
  3. Corner GW. A well-preserved human embryo of 10 somites. (1929) Contrib. Embryol., Carnegie Inst. Wash. Publ. 394, 20:81-102.
  4. Wilson JT. Observations upon young human embryos. (1914) J Anat Physiol., 48(3): 315-51 PMID 17233002 PMC1288949