Paper - Sequential innervation of the intestinal loop in the human embryo

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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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This 1981 paper (in French) by Bossy uses the Carnegie Collection embryos to characterise the development of the innervation of the Template:Intestines. Note only a modified version of the abstract is shown online for educational purposes.



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Sequential Innervation of the Intestinal Loop in the Human Embryo

Note the original article was in French.

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:

  1. stage 19 - nerves fibres face the mesentery.
  2. stage 20 - nerves penetrate into the mesentery.
  3. 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.
  4. stage 22 - Nerve fibres are anchored to the muscular layer of the middle part of the intestinal loop.
  5. The nerve buds reach the distal part of the loop in the umbilical cord.



Cite this page: Hill, M.A. (2024, March 19) 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

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