Category:Carnegie Embryo 837
This Embryology category shows pages and images that relate to the Carnegie Collection Embryo No. 837. This 18 mm embryo was classified as Carnegie stage 19 occurring during Week 8.
Serial No. | Size (mm) | Grade | Fixative | Embedding Medium | Plane | Thinness (µm) | Stain | Point Score | Sex | Year | Notes |
---|---|---|---|---|---|---|---|---|---|---|---|
837 | E. 21 Ch. 65x45x | Good | Formol | P | Sag. | 40 | Al. coch. | 14.5 | P | 1914 |
References
Kunitomo K. The development and reduction of the tail and of the caudal end of the spinal cord (1920) Contrib. Embryol., Carnegie Inst. Wash. Publ. 272, 9: 163-198.
Streeter GL. Developmental Horizons In Human Embryos Description Or Age Groups XIX, XX, XXI, XXII, And XXIII, Being The Fifth Issue Of A Survey Of The Carnegie Collection. (1957) Carnegie Instn. Wash. Publ. 611, Contrib. Embryol., 36: 167-196.
Carnegie Collection - Stage 19 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Serial No. | Size (mm) | Grade | Fixative | Embedding Medium | Plane | Thinness (µm) | Stain | Score | Sex | Year | Notes |
17 | E, 18 Ch, 40x30x20 | Poor | Alc. | P | 50, 100 | Al. carm. | 16.5 | Male | 1894 | ||
43 | E, 16 | Good | Alc. | P | 50 | Al. coch. | 10 | Male | 1894 | ||
293 | E, 19 | Poor | Ale. | P | Sagittal | 50 | Coch. | 16.5 | S | 1905 | |
390 | E, 19 | Good | Formol? | P | Sagittal | 20, | (Stain - Haematoxylin Eosin) | 11.5 | Male | 1906 | Tubal Injected
50 |
409 | E.18 Ch, 50x40x40 | Good | Formalin | P | Transverse | 20 | Copper, iron H. & erythrosin | 14.5 | Male | 1907 | |
432 | E..18.5 Ch , 45x35x20 | Good | Formalin | P | Sagittal | 20 | H. & Congo red | 13.5 | Male | 1910 | Tubal |
576 | E. 17 Ch, 60x40 | Good | Formalin | P | Sagittal | 15, 20 | (Stain - Haematoxylin Eosin) | 14.5 | d | 1912 | Tubal |
626 | E., 21.5 Ch., 40x30x21 | Good | Formalin | P | Transverse | 100 | Al. coch. | 14_5 | 6 | 1913 | |
6??8 | E, 20 Ch, ca. 30 | Poor | Formalin | P | Sagittal | 50 | Al. coch. | 12 | 9 | 1913 | Head damaged |
709 | E, 19 Ch. 40x35x25 | Poor | Alc. | P | Coronal | 40 | Al. coch, Lyons blue | 15 | 49 | 1913 | |
837 | E. 21 Ch. 65x45x | Good | Formalin | P | Sagittal | 40 | Al. coch. | 14.5 | P | 1914 | |
1324 | E., 18 50x30x18 | Good | Formalin | C | Coronal | 40 | (Stain - Haematoxylin Eosin), aur, or. G | 125 | 79 | 1915 | |
1332 | E., 19 Ch., 40x43x22 | Poor | Formalin | C | Coronal | 40 | (Stain - Haematoxylin Eosin) aur, or. G. | 15 | Male | 1915 | |
1390 | E., 18 Ch, 40x38x15 | Good | Formalin | P | Sagittal | 20 | Al. coch. | 10_5 | Male | 1915 | Tubal |
1534 | E., 13 Ch.,35x31x25 | Poor | Formalin | P | 53% | 50 | Al. coch. | 13.5 | F | 1916 | Protruding midbrain |
2114 | E., 19.3 Ch., 49x42x33 | Good | Formol | P | Transverse | 40 | A1. coch. | 12 | M | 1918 | |
4405 | E., 15.5 | Good | Formalin | P | Transverse | 10 | Coch, Mallory | 13.5 | <3 | 1923 | Midbrain injured |
4501 | E, 18 | Exc. | Bouin | P | Transverse | 15 | Coch, or. G. | 14.6 | 1924 | Cystic left kidney | |
5609 | E., 18 | Exc. | Formalin | P | Coronal | 25 | A1. coch. | 13.5 | Male | ||
6150 | E., 17 Ch., 40x39x30 | Good | Bouin | C-P | Transverse | 15 | (Stain - Haematoxylin Eosin) | 16.5 | Male | 1930 | Tubal |
6824 | E., 18.5 Ch., 45x40x25 | Good | Formalin | C-P | Sagittal | 12 | (Stain - Haematoxylin Eosin) | 14.5 | Female | 1933 | |
7900 | E., 16.5 | Good | Bouin | C-P | Sagittal | 20 | (Stain - Haematoxylin Eosin), phlox. | 11.5 | . . | 1941 | Tubal |
8092 | E., 16.3 Ch., 52 x 47 | Exc. | Bouin | C-P | Transverse | 20 | (Stain - Haematoxylin Eosin), phlox. | 13 | Male | 1942 | |
8913 | E.,? Ch, 34 | Poor | Formalin | p | Transverse | 10 | Alan . | 7 | 1951 | rubella. Medical abortion. Isolated head damaged | |
8965 | E, 19.1 Ch, 42x32x19 | Good | Formol—Zenker | C-P | Transverse | 10 | Borax, carm, or. G. | 1952 | Univ. Chicago No. H 173 | ||
9097 | E, 21 | Exc. | Formol—glucose | C-P | Coronal | 10 | Azan ? . | ? | 1930 | Univ. Chicago No H 1380 | |
9113 | E, 185 Ch, 24 | Exc. | Formalin | C-P | Transverse | 10 | Alan > 6 | 1953 | Rubella. Medical abortion | ||
9325 | E, 17.0 Ch, 32x28x20 | Good | Formalin | —acetic p | Transverse | 15& 8-10 | Azan & Ag | ? | - | 1955 | Tubal |
Abbreviations
|
Embryo No. 837, 21 mm Crown-Rump Length
Kunitomo K. The development and reduction of the tail and of the caudal end of the spinal cord (1920) Contrib. Embryol., Carnegie Inst. Wash. Publ. 272, 9: 163-198.
Embryo No. 837 has 35 cartilaginous vertebrae, but the last is very small and its transition into cartilage is just beginning. It is surrounded by a voluminous mass of precartilaginous tissue resulting from the fusion of the last few scleromeres. The caudal piul of tlio fliordti dorsalis projects from the oxtrciiic (mkI of the vcrtol)nil foluinii into the region of the non-vertebrated tail and :ipiK>ars as if previously it may have adhered to the wall of the caudal end of the neural tube. In the thirty-fourth vertebra, and between tiie thirty-fourth and thirty-third, the chorda shows a typical loop formation, while iu its main portion it is almost straight and is situated in the midline of the column. The central canal of the spinal cord narrows sharply at the level of the thirty-second vertebra. Its ventral wall shows a few folds in the region of the atrophic portion of the cord. The spinal cord reaches to the tip of the tail and has a continuous canal thoughout. The middle sacral artery and vein extend into the non-vertebrated portion of the tail.
Cite this page: Hill, M.A. (2024, March 19) Embryology Carnegie Embryo 837. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Category:Carnegie_Embryo_837
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
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