Development of Hindgut (Special Embryology)

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Anatomy of Part of Gut Developed from

Hindgut

Dr. Sherif Fahmy

Anatomy

Dr. Sherif Fahmy

Dr. Sherif Fahmy

Rectum

Anal canal

Dr. Sherif Fahmy

Rectum

Anal canal

Dr. Sherif Fahmy

The Hindgut(Page 89)

Dr. Sherif Fahmy

Secondary yolk sac before folding

Dr. Sherif Fahmy

Mesoderm

Hindgut

Midgut

L.S. in folded embryo

Allantois

Cloaca

Cloacal membrane Dr. Sherif Fahmy

Dr. Sherif Fahmy

Dr. Sherif Fahmy

Dr. Sherif Fahmy

Dr. Sherif Fahmy

Congenital Anomalies• 1- Imperforate Anus: Failure of

rupture of anal membrane.• 2- Congenital megacolon

(Aganglionic colon or Hirschsprung): Absence of parasympathetic ganglia.• 3- Anorectal or anal agenesis with

or without fistula.• 4- Recto-vesical, recto-uretheral or

recto-vaginal fistula. Dr. Sherif Fahmy

Dr. Sherif Fahmy

Dr. Sherif Fahmy

Dr.Sherif Fahmy

Dr. Sherif Fahmy

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