Vol 58, No 1 (1999)
Original article
Submitted: 2012-02-06
Published online: 2000-01-25
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Further study of the urorectal septum in staged human embryos
Folia Morphol 1999;58(1):53-63.
Vol 58, No 1 (1999)
ORIGINAL ARTICLES
Submitted: 2012-02-06
Published online: 2000-01-25
Abstract
Study was carried out on serial section of 45 human embryos of stages 13 to 23. The urorectal septum develops from three folds: single superior and two lateral ones. Development of the urorectal septum begins at stage 13 when the superior fold between the hindgut and allontois appears. At stage 15, all three folds unite to from complete septum, reaching the cloacal membrane and dividing the cloaca into anterior compartment, the primary urogenital sinus and the posterior compartment rectum.
Abstract
Study was carried out on serial section of 45 human embryos of stages 13 to 23. The urorectal septum develops from three folds: single superior and two lateral ones. Development of the urorectal septum begins at stage 13 when the superior fold between the hindgut and allontois appears. At stage 15, all three folds unite to from complete septum, reaching the cloacal membrane and dividing the cloaca into anterior compartment, the primary urogenital sinus and the posterior compartment rectum.
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Keywords
Human development Embryonic period. Urogenital sinus. Urorectal septum
About this articleTitle
Further study of the urorectal septum in staged human embryos
Journal
Issue
Article type
Original article
Pages
53-63
Published online
2000-01-25
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496
Bibliographic record
Folia Morphol 1999;58(1):53-63.
Keywords
Human development Embryonic period. Urogenital sinus. Urorectal septum
Authors
Kromer P
