Anal canal development in the embryonic and early foetal period

• Autorzy: Kromer P , Korzeniowska-Kromer E.
• Języki publikacji: EN

Abstrakty

EN

The aim of study is to investigate the development of the anal canal in human embryos and foetuses. In embryos at stage 19 the boundary between the ectodermal and endodermal linings of the anal canal is located just below the level of the internal anal sphincter muscle. Histological sections showed that the first signs of anal columns are observed in embryos at stage 21 (51 days).

Słowa kluczowe

EN

anal canal; development; embryonic period; early fetal period; fetal period; rectum

• Wydawca: -
• Czasopismo: Folia Morphologica
• Rocznik: 2003
• Tom: 62
• Numer: 3
• Opis fizyczny: p.285-287,fig.,ref.

Twórcy

autor

Kromer P

• University of Medical Sciences, Swiecickiego 6, 60-781 Poznan, Poland

autor

Korzeniowska-Kromer E.

Bibliografia

• 1. Nievelstein RA, van der Werff JF, Verbeek FJ, Valk J, Vermeij-Keers C (1998) Normal and abnormal embryonic development of the anorectum in human embryos. Teratology, 57: 70–78.
• 2. Pena A, Kessler O (1998) Posterior cloaca: A unique defect. J Ped Surg, 33: 407–412.
• 3. Vries de PA, Friedland GW (1974) The staged sequential development of the anus and rectum in human embryos and fetuses. J Ped Surg, 9: 755–769.