Wilhelm Roux's archives of developmental biology

, Volume 194, Issue 7, pp 429–432

Tall gut formation in the rat embryo

Authors

  • Anton Švajger
    • Institute of Histology and Embryology, Faculty of MedicineUniversity of Zagreb
  • Ljiljana Kostović-Knežević
    • Institute of Histology and Embryology, Faculty of MedicineUniversity of Zagreb
  • Želimir Bradamante
    • Institute of Histology and Embryology, Faculty of MedicineUniversity of Zagreb
  • Mercedes Wrischer
    • Department of Organic Chemistry and Biochemistry, Rudjer Bošković InsituteUniversity of Zagreb
Rapid Communications

DOI: 10.1007/BF00848557

Cite this article as:
Švajger, A., Kostović-Knežević, L., Bradamante, Ž. et al. Wilhelm Roux' Archiv (1985) 194: 429. doi:10.1007/BF00848557

Summary

The formation of the tail portion of the primitive gut was investigated by light and electron microscopy in 10- and 11-day rat embryos. The observations permit the conclusion that the tail gut does not form as a posterior extension of the hindgut but originates from the tail bud mesenchyme by mechanism analogous to the secondary neurulation. It includes cell condensation, aquisition of apicobasal polarity and the radial, rosette-like arrangement around a central cavity. These cells bear the cytological characteristics of both the absorptive epithelial cells and the mesenchymal cells at their apical (adluminal) and abluminal ends respectively.

Key words

Tail budTail gutGutOrganogenesisRat
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Copyright information

© Springer-Verlag 1985