File:Frazer1915 fig05.jpg

Fig. 5. Schemes to illustrate the formation of the curve of the duodenum

The mesentery is supposed to be viewed from the dorsum, having been cut away from its dorsal attachment. The dorsal mesoduodenum is seen as a thick mass projecting to the right immediately below the protrusion to the left of the small sac. The alimentary tube is shown by interrupted lines running down in the front wall of the small sac, turning to the right, and becoming continuous with the duodenum which passes down in front of the mesoduodenum.

The head (H) and body (B) of pancreas grow into the mesoduodenum: observe that B can pass almost directly into the wall of the small sac. The other figures show how, while B extends into this wall, H grows in the mesoduodenum and by its enlargement curves out the duodenum round it: thus the duodenum is attached all the time to the mesoduodenum. X is the position of Treitz’ band, put in its hypothetical place in the first two figures.

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)

Links: Fig 1 | Fig 2 | Fig 3 | Fig 4 | Fig 5 | Fig 6 | Fig 7 | Fig 8 | Fig 9 | Fig 10 | Fig 11 | Fig 12 | Fig 13 | Fig 14 | Fig 15 | Fig 16 | Fig 17 | Fig 18 | 1915 Frazer | Intestine Development | Category:Intestine

Reference

Frazer JE. and Robbins RH. On the factors concerned in causing rotation of the intestine in man. (1915) J Anat. 50(1): 75-110. PMID 17233053

Cite this page: Hill, M.A. (2024, April 27) Embryology Frazer1915 fig05.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Frazer1915_fig05.jpg

What Links Here?

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