Category:Carnegie Embryo 7702

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This Embryology category relates to the Carnegie Collection Embryo No. 7702. This embryo was classified as Stage 11 occurring during Week 4.

Serial No.	Pairs of somites	Size (mm)	Grade	Fixative	Embedding Medium	Plane	Thinness (µm)	Stain	Year	Notes
7702	17	E, 3.7 Ch., 14	Good	Formol	C-P	Trans	10	Al. coch.	1940	Returned to B M Patten

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 ↑ 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. ↑ 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. ↑ 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

Cite this page: Hill, M.A. (2024, April 19) Embryology Carnegie Embryo 7702. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Category:Carnegie_Embryo_7702

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[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.

[PMID13448995-3] PARK WW. (1957). The occurrence of sex chromatin in early human and macaque embryos. J. Anat. , 91, 369-73. PMID: 13448995

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