Category:Carnegie Embryo 405
This Embryology category includes pages and images that relate to the Carnegie Collection Embryo No. 405 (1907).
This embryo was classified as Carnegie stage 22 occurring during Week 8, GA week 10.
Stage 22 Links: Week 8 | System Development | Lecture - Limb | Lecture - Head Development | Lecture - Sensory | Science Practical - Head | Science Practical - Sensory | Science Practical - Urogenital | Historic - Skull Development | Carnegie Embryos | Madrid Embryos | Category:Carnegie Stage 22 | Next Stage 23 |
Week 8, GA week 10, 54 - 56 days, CRL 23 - 28 mm, Carnegie Embryos |
Historic Papers: 1914 | 1954 Stage 19-23 |
Carnegie Collection - Stage 22 | |||||||||||
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Serial No. | Size (mm) | Grade | Fixative | Embedding Medium | Plane | Thinness (µm) | Stain | Point Score | Sex | Year | Notes |
405 | E., 26 | Good | Formol | C | Sag. | 40 | Carmine | 42.5 | M | 1907 | |
Abbreviations
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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.
Carnegie Collection - Stage 22 | |||||||||||
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Serial No. | Size (mm) | Grade | Fixative | Embedding Medium | Plane | Thinness (µm) | Stain | Point Score | Sex | Year | Notes |
392 | E., 23 Ch., 45x45x25 | Poor | ... | P | Sagittal | 50 | Al. coch. | 42 | Female | 1907 | Brödel Collection. Injected |
405 | E., 26 | Good | Formalin | C | Sagittal | 40 | Carmine | 42.5 | Male | 1907 | |
464 | E.,26 Ch., 45x40x30 | Good | Formol? alc? | P | Sag. | 100 | Al. coch. | 44.5 | Male | 1910 | |
584A | E.,25 Ch., 50x42x40 | Poor | Formalin | P | Sagittal | 50 | Al. coch. | 41 | ? | 1913 | |
630 | E., 25 | Poor | Formalin | P | Transverse | 100 | Al. coch. | 46 | Male | 1913 | |
840 | E, 24.8 | Good | Formalin | P | Transverse | 50 | Al. coch. | 44.5 | Female | 1914 | |
875 | E, 27 Ch., 40x28x22 | Good | Formalin | P | Sagittal | 40 | Al. coch. | 45 | Male | 1914 | |
895 | E., 26 Ch., 67x62x54 | Good | Formalin | P | Transverse | 25 | Al. coch. | 46.5 | Female | 1914 | |
1315 | E.,25 | Good | Formalin | P | Sagittal | 50 | Al. coch. | 40.5 | Female | 1915 | Spina bifida and anencephaly |
1458 | E., 27.5 Ch, 45x45x30 | Exc. | Formalin | C | Sagittal | 50 | (Stain - Haematoxylin Eosin) aur, or. G. | 45.5 | Male | 1916 | |
1894 | E, 24.6 | Good | Formalin | c | Sagittal | 40,80 | (Stain - Haematoxylin Eosin) aur, or. G. | 41 | Female | 1917 | |
2206 | E, 27 Ch, 50x30x18 | Poor | Formalin | p | Transverse | 40 | (Stain - Haematoxylin Eosin) | 44.5 | Male | 1918 | |
3681 | E, 26.3 Ch, 36x36x34 | Good | Formalin | p | Transverse | 25 | Al. coch. | 44.5 | Male | 1921 | |
4304 | E,25 Ch, 66x45x45 | Good | Bouin | p | Transverse | 20 | (Stain - Haematoxylin Eosin) | 44.5 | Female | 1923 | Injected |
4339 | E, 24.5 | Good | Formalin | p | Transverse | 15 | Al. coch, Mallory | 46,5 | Female | 1923 | |
4476 | E., 26.2 | Good | Bouin | p | Transverse | 40 | (Stain - Haematoxylin Eosin) | 46 | Female | 1923 | Tubal |
4638 | E, 23.4 | Exc. | Bouin | p | Transverse | 15,20 | Al. coch, or. G. | 41.5 | Male | 1924 | |
6701 | E, 24 | Poor | Formalin | p | Coronal | 20 | (Stain - Haematoxylin Eosin) | 41 | Female | 1933 | |
6832 | E, 25.8 | Exc. | Bouin | C-P | Coronal | 20 | (Stain - Haematoxylin Eosin) | 42 | Female | 1934 | |
8394 | E, 25.3 Ch, 48x50x34 | Exc. | Bouin | C-P | Transverse | 20 | (Stain - Haematoxylin Eosin), Masson | 44.5 | Female | 1946 | |
8948 | E, 26.7 Ch, 61x51x50 | Poor | Formol-Zenker | p | Transverse | 15 | Ag | ? | ? | 1952 | |
Abbreviations
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Embryo No. 405, 26 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 405 has 34 vertebrae, as indicated in figure 18. The last one inchnes dorsally from the axis of the vertebral column. Between the thirtieth and thirty-first vertebrae the axis of the ventral column shows a decided angle and below this point bends ventrally, presenting the coccygeal curve which is characteristic of the adult. The chorda dorsalis presents a spindle-shaped swelling at each intervertebral space and its caudal end shows a loop-formation in the thirty-third vertebra. The spinal cord narrows at a level between the thirtieth and thirty-first vertebrae; the atrophic portion, with its narrow canal, is spiral at its caudal end and enters mto the blunt tail-bud. On the dorsal surface of this spiral part of the cord the epidermis is lacking; whether this is due to mechanical injury or is a natural phenomenon could not be determined. From the ventral side two branches of the anterior spinal artery enter. This embryo has 31 spinal ganglia completely supplied with ner\Ts. The middle sacral artery anastomoses through a branch with the anterior spinal artery.
Cite this page: Hill, M.A. (2024, April 28) Embryology Carnegie Embryo 405. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Category:Carnegie_Embryo_405
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
Pages in category 'Carnegie Embryo 405'
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