Fallopian tubes
General
Embryology

Author: Jamie Shutter, M.D. (see Authors page)

Revised: 28 July 2017, last major update March 2013

Copyright: (c) 2002-2017, PathologyOutlines.com, Inc.

PubMed Search: "Fallopian tubes" AND "embryology"

Table of Contents
General | Additional references
Cite this page: Embryology. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/fallopiantubesembryology.html. Accessed December 13th, 2017.
General
  • 3rd week:
    • Migration of primordial germ cells from yolk sac, genital ridge forms from intermediate mesoderm, cloaca forms
  • 4th week:
    • Müllerian (paramesonephric) ducts form from coelomic epithelium invaginating venterolaterally into Wolffian (mesonephric) duct and genital mesentery
    • This site of invagination later becomes the tubal ostium in which the fimbriae develop; septation of the cloaca occurs
  • 5th - 8th weeks:
    • Unfused cephalic part of Müllerian ducts form fallopian tube
    • Fused part forms uterus and upper vagina
  • In a female fetus (or male without functioning testis):
    • Testes produce Müllerian inhibitory substance, which causes regression of Müllerian ducts and persistence of paired Wolffian (mesonephric) ducts, which form epididymis and vas deferens
    • The Müllerian remant is the rudimentary appendix testis
  • In a male fetus:
    • Testes produce Müllerian inhibitory substance, which causes regression of Müllerian ducts and persistence of paired Wolffian (mesonephric) ducts, which form epididymis and vas deferens
    • The Müllerian remant is the rudimentary appendix testis