File:Human fetal pancreas anatomy cartoon.jpg

Human fetal pancreas anatomy

Fetal topographical anatomy of the pancreatic head and duodenum with special reference to courses of the pancreaticoduodenal arteries.

A diagram showing joining processes between the dorsal and ventral primordia of the pancreas as well as the hypothetical rotation of the duodenum along a left-right axis. Viewed from the posterosuperior side of the body. A horizontal plane including most parts of the duodenum is shown to emphasize, in contrast to adults, the course of the second portion (D2) directing posteriorly rather than inferiorly. The topographical anatomy of the duodenum and pancreatic head is based on observations of fetuses of 20-30 weeks (e.g., Figs. 3,4,5 and 6). The anterior mass of the pancreatic head (labeled by dots) seems to correspond to the dorsal primordium of the pancreas, while an oblique or perpendicular posterior mass [labeled by sharps (#)] seems to primarily correspond to the ventral primordium. The portal vein and right hepatic artery run in the superior sides of and along their border between the anterior and posterior masses. Notably, tongue-like protrusions of the anterior mass or dorsal pancreas (stars) surround the primary posterior mass or the ventral pancreas. In particular, the right anterior protrusion (open star) often reaches the inferior end of the ventral pancreas. The common bile duct crosses the superior side of the first portion of the duodenum. We hypothesize a rotation along a left-right axis through the third portion of the duodenum in the later stage of development. In addition, the fourth portion is connected by a fascia (asterisk) to a thick fascia along the left renal vein.

Reference

Jin ZW, Yu HC, Cho BH, Kim HT, Kimura W, Fujimiya M & Murakami G. (2010). Fetal topographical anatomy of the pancreatic head and duodenum with special reference to courses of the pancreaticoduodenal arteries. Yonsei Med. J. , 51, 398-406. PMID: 20376893 DOI.

Copyright

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Original File Name: Fig. 7 Ymj-51-398-g007-l.jpg

Cite this page: Hill, M.A. (2024, April 26) Embryology Human fetal pancreas anatomy cartoon.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Human_fetal_pancreas_anatomy_cartoon.jpg

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