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==Fig. 22. Intra-abdominal View of the Umbilical Region in a Human Embryo 12 cm in Length==


(X 3.)
The urachus is very narrow, as seen in the lower cross-section. In the cord, however, it (the allantois) has at
several points a definite lumen lined with polygonal cells. The umbilical ring is completely closed. Fig. 23 gives an
external view of the umbilical region of the same embryo.
{{Cullen1916 figures1}}
[[Category:Placenta]][[Category:Fetal]][[Category:Bladder]]

Latest revision as of 20:49, 28 October 2018

Fig. 22. Intra-abdominal View of the Umbilical Region in a Human Embryo 12 cm in Length

(X 3.)

The urachus is very narrow, as seen in the lower cross-section. In the cord, however, it (the allantois) has at several points a definite lumen lined with polygonal cells. The umbilical ring is completely closed. Fig. 23 gives an external view of the umbilical region of the same embryo.



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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)
Figure Links: 1 Human embryo 0.7 mm | 2 Human embryo 1.7 mm | 3 Human embryo 2.5 mm | 4 Human embryo 3.5 mm | 5 Human embryo 5 mm | 6 Human embryo 7 mm | 7 Human embryo 7 mm | 8 Human embryo 10 mm | 9 Human embryo 12.5 mm | 10 Human embryo 10 mm | 11 Human embryo 23 mm | 12 Human embryo 3 cm | 13 Human embryo 4.5 cm sagittal | 14 Human Embryo 4.5 cm | 15 Human Embryo 5.2 cm | 16 Human Embryo 6.5 cm | 17 Human Embryo 7.5 cm | 18 Human Embryo 9 cm | 19 Human Embryo 10 cm | 20 Human Embryo 12 cm | 21 Human Embryo 12 cm | 22 Human Embryo 12 cm | 23 Human Embryo 12 cm Cord | 28 Fetus Five Months | 30 Ventral Heria | 31 Human Embryo 5.5 cm | 32 Term Human | 33 Term Human | [[Figures


Reference

Cullen TS. Embryology, anatomy, and diseases of the umbilicus together with diseases of the urachus. (1916) W. B. Saunders Company, Philadelphia And London.

Cite this page: Hill, M.A. (2024, May 8) Embryology Cullen1916 fig22.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Cullen1916_fig22.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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