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Fig. 39. Dextro-dorsal view of entire chick embryo of 36 somites
(X 14) (about three days incubation)
Chicks of three days incubation (Fig. 39) have been affected by torsion throughout their entire length. Torsion is complete well posterior to the level of the heart but the caudal portion of the embryo is not yet completely turned on its side. In four-day chicks the entire body has been turned through 90 degrees and the embryo lies with its left side on the yolk (Fig. 40).
- Links: Introduction | Gametes and Fertilization | Segmentation | Entoderm | Primitive Streak and Mesoderm | Primitive Streak to Somites | 24 Hours | 24 to 33 Hours | 33 to 39 Hours | 40 to 50 Hours | Extra-embryonic Membranes | 50 to 55 Hours | Day 3 to 4 | References | All Figures
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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) |
Reference
Patten BM. The Early Embryology of the Chick. (1920) Philadelphia: P. Blakiston's Son and Co.
Cite this page: Hill, M.A. (2024, May 13) Embryology Patten039.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Patten039.jpg
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
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