File:Keibel Mall 2 540.jpg
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Fig. 540. Transverse section of an embryo of 1.38 mm greatest length
with 5-6 pairs of primitive segments, at the level of the cloaca. (Embryo Pfannenstiel-Kromer, from the collection of Professor Pfannenstiel; slide 7, row 3, section 3.) x 120.
In consequence of a shrinkage the entoderm has separated from the mesoderm, and the formation of vessels, which takes place from the entire visceral mesoblast, is distinctly seen. It occurs by the separation of an entire cell layer from the visceral mesoblast, with which it remains in connection by cell prolongations or cell groups. A distinction between rete peri-intestinale and aorta caunot be made; it is rather a question of the formation of an intestinal blood-sinus, such as we know from the invertebrates (Lang, 1903).
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Felix W. The development of the urinogenital organs. In Keibel F. and Mall FP. Manual of Human Embryology II. (1912) J. B. Lippincott Company, Philadelphia. pp 752-979.
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Cite this page: Hill, M.A. (2024, April 26) Embryology Keibel Mall 2 540.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Keibel_Mall_2_540.jpg
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
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current | 18:05, 14 November 2018 | 1,280 × 938 (182 KB) | Z8600021 (talk | contribs) | ||
18:03, 14 November 2018 | 1,919 × 1,671 (419 KB) | Z8600021 (talk | contribs) | Fig. 540. Transverse section of an embryo of 1.38 mm. greatest length and with 5-6 pairs of primitive segments, at the level of the cloaca. (Embryo Pfannenstiel-Kromer, from the collection of Professor Pfannenstiel; slide 7, row 3, section 3.) '' 120.... |
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