File:Keibel Mall 2 581.jpg

Fig. 581. Model of the right ureteric tree of an embryo of 19.4 mm vertex-breech length

seen from in front. (Embryo Ma. 2, from the collection of Professor Hochstetter, Vienna.)

In this ureter there are two pole tubules and only one central tubule. The latter is greatly retarded in its development. The letters P and Z denote the pole and central tubules, the numbers accompanying the letters indicate the order of the tubules concerned. The caudal pole tubule is further developed than the cranial one, having produced tubules of the sixth order, while the cranial one is just producing those of the fifth order. If one traces out the various pole tubules one finds that the advancement of the formation of new tubules varies on the individual branches. If we regard the whole kidney as a half-moon, those branches of the pole tubules are most developed that are nearest the horns. This agrees with the general development; the ureteric tree curves medially around the renal pelvis in the direction of the two arrows. From the position of the tubules of the third and fourth orders one sees that already the growth in thickness in the dorso-ventral direction has begun.

Embryology - 26 Apr 2024        Expand to Translate
Google Translate - select your language from the list shown below (this will open a new external page)
العربية | català | 中文 | 中國傳統的 | français | Deutsche | עִברִית | हिंदी | bahasa Indonesia | italiano | 日本語 | 한국어 | မြန်မာ | Pilipino | Polskie | português | ਪੰਜਾਬੀ ਦੇ | Română | русский | Español | Swahili | Svensk | ไทย | Türkçe | اردو | ייִדיש | Tiếng Việt    These external translations are automated and may not be accurate. (More? About Translations)

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.

Historic Disclaimer - information about historic embryology pages

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)

Cite this page: Hill, M.A. (2024, April 26) Embryology Keibel Mall 2 581.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Keibel_Mall_2_581.jpg

What Links Here?

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