File:Keibel Mall 2 543.jpg

From Embryology

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Fig. 543. Transverse section of a human embryo of 2.5 mm greatest length

with 23 pairs of primitive segments. (Embryo R. Meyer 300, from the collection of Professor R. Meyer, Berlin; slide 14, row 2, section 6.) x 120.

The section passes through the tail bend and cuts, above, the 16th and 17th primitive segments, below, the primitive segment plate. The aorta is cut twice and between the two aortse are sections of four rami intestinales, which are united by the longitudinal commissural vessel. Above is the nephrogenic tissue and the free terminal portion of the primary excretory duct, below and on the left is the end of the primary excretory duct at the ectoderm.

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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.

XIX Development of the Urinogenital Organs: Excretory Glands and their Ducts | Reproductive Glands and their Duct | Urogenital Union | External Genitalia | Figures | Literature
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Cite this page: Hill, M.A. (2024, June 14) Embryology Keibel Mall 2 543.jpg. Retrieved from

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current06:19, 15 November 2018Thumbnail for version as of 06:19, 15 November 20181,280 × 1,193 (241 KB)Z8600021 (talk | contribs)
06:18, 15 November 2018Thumbnail for version as of 06:18, 15 November 20182,005 × 2,051 (460 KB)Z8600021 (talk | contribs)