Paper - Sequential innervation of the intestinal loop in the human embryo
Embryology - 25 Apr 2024 Expand to Translate |
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Bossy, J. Innervation sequentielle de l'anse intestinale chez Fembryon humain (Sequential innervation of the intestinal loop in the human embryo). (1981) Bull. Ass. Anat. 65: 245-251. PMID 7326467
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Sequential Innervation of the Intestinal Loop in the Human Embryo
Abstract
The study of 20 excellent human embryos of the Carnegie Collection has allowed the innervation of the intestinal loop to be traced during the embryonic period proper. It follows the centrifugal sequence observed throughout in the development of the peripheral nervous system.
- stage 14 or 15 - the rami comunicantes and the primordium of the latero-vertebral sympathetic trunk appear.
- stage 16 - the splanchnic fibres are noted.
- stage 17 - the superior mesenteric plexus appears.
Then nerve bundles progress along the superior mesenteric artery according to the following sequence:
- stage 19 - nerves fibres face the mesentery.
- stage 20 - nerves penetrate into the mesentery.
- stage 21 - nerve buds move forwards and nerve fibres begin to be anchored to the muscular layer of the proximal portion of the loop, duodenum and colon.
- stage 22 - Nerve fibres are anchored to the muscular layer of the middle part of the intestinal loop.
- The nerve buds reach the distal part of the loop in the umbilical cord.
Cite this page: Hill, M.A. (2024, April 25) Embryology Paper - Sequential innervation of the intestinal loop in the human embryo. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Paper_-_Sequential_innervation_of_the_intestinal_loop_in_the_human_embryo
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G