Colon nontumor
General
Embryology




Topic Completed: 1 January 2013

Revised: 7 January 2019, last major update January 2013

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PubMed search: Embryology[title] colon
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Cite this page: Gulwanni H. Embryology. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/colonembryology.html. Accessed May 25th, 2019.
Definition / general
  • Primitive gut is divided into foregut, midgut, hindgut
  • Midgut gives rise to cecum, ascending colon and right 75% of transverse colon (also distal duodenum to ileum)
  • Hindgut develops into remainder of transverse colon to anorectal line
  • During week 6 of fetal development, endodermal epithelium of gut tube proliferates and completely occludes the lumen
  • Over the next two weeks, it vacuolates and recanalizes
  • Maturation of haustra and tenia coli start from ascending colon and progress towards sigmoid colon (Early Hum Dev 2004;78:1)
Microscopic (histologic) images

Images hosted on PathOut server:

Contributed by Dr. Grigory Demyashkin, I. M. Sechenov First Moscow State Medical University (Russia) - 6-8 week embryo:

Left, above: metanephros; center: colon; right from top: pancreas

Colon



Images hosted on other servers:

Various images

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