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Figs. 76-79. [[:Category:Carnegie Embryo 4570|No. 4570]]. | Figs. 76-79. [[:Category:Carnegie Embryo 4570|No. 4570]]. | ||
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[[Category:Week 8]][[Category:Carnegie Stage 23]] | [[Category:Week 8]][[Category:Carnegie Stage 23]] | ||
[[Category:Carnegie Embryo 7425]][[Category:Carnegie Embryo 4570]] | [[Category:Carnegie Embryo 7425]][[Category:Carnegie Embryo 4570]] |
Revision as of 13:42, 22 May 2017
Plate 1. Photographs of two embryos belonging to horizon xxiii
The superficial vascular plexus has spread nearly to the vertex of the head. A considerable growth in the length of the extremities has occurred in two days. The forearm is sometimes raised to a level above that of the shoulder, and the hands extend far out in front of the embryo. x2.5.
Figs. 72-75. No. 7425.
Figs. 76-79. No. 4570.
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 |
- Carnegie Stages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | About Stages | Timeline
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Pages where the terms "Historic" (textbooks, papers, people, recommendations) appear on this site, and sections within pages where this disclaimer appears, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the terminology and interpretation of the developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these terms, interpretations and recommendations may not reflect our current scientific understanding. (More? Embryology History | Historic Embryology Papers) |
- Links: 1 Graph Embryos 11-23 | 4 Eye and optic nerve 19-23 | Plate 1 - Cornea | Plate 2 - Hypophysis
Reference
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.
Cite this page: Hill, M.A. (2024, May 4) Embryology Streeter1957 stage 23 plate01.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Streeter1957_stage_23_plate01.jpg
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
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