Microscopic features of the umbilical cord in equine (Equus caballus <FONT FACE=Symbol>;¾</FONT>; Linnaeus, 1758)

Authors

  • Francisco de Sales Resende Carvalho Universidade Federal de Uberlândia, Faculdade de Medicina Veterinária, Departamento de Medicina Animal, Uberlândia, MG
  • Maria Angélica Miglino Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Cirurgia, São Paulo, SP
  • Renato Souto Severino Universidade Federal de Uberlândia, Instituto de Ciências Biomédicas, Uberlândia, MG
  • Fernando Antonio Ferreira Universidade Federal de Uberlândia, Faculdade de Medicina Veterinária, Departamento de Medicina Animal, Uberlândia, MG
  • Carlos Gomes Ferreira Universidade Federal de Uberlândia, Faculdade de Medicina Veterinária, Departamento de Medicina Animal, Uberlândia, MG
  • Tatiana Carlesso dos Santos Centro Regional Universitário do Espírito Santo do Pinhal, Espírito Santo do Pinhal, SP

DOI:

https://doi.org/10.1590/S1413-95962001000200004

Keywords:

Horse, Umbilical cord, Vein, Artery

Abstract

Microscopy of the umbilical cord vein and arteries from cross-bred equine in different pregnancy stages was studied. Umbilical cords from 8 fetuses were collected with age varying from 73 to 249 days. For histological study several staining techniques were used, such as hematoxilin-eosin, Verhoeff, Gordon, picrossirius and Masson's Tricrome. Both the arteries and the veins presented a tunic intern in the constitution of their walls that showed a characteristic plaiting mainly in the arteries, a tunic media that contained a well developed musculature, and a tunic adventitia. Reticular fibers were common characteristics in the wall of the umbilical vessels, even so more numerous in the walls of the umbilical veins. On the other hand, the elastic fibers appeared in small amount mainly in the tunic media and adventitia. Finally, the disposition of the collagen fibers could be evidenced by the picrossirius staining technique, and they were very similar in both the vein and the umbilical arteries.

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Published

2001-01-01

How to Cite

Carvalho, F. de S. R., Miglino, M. A., Severino, R. S., Ferreira, F. A., Ferreira, C. G., & Santos, T. C. dos. (2001). Microscopic features of the umbilical cord in equine (Equus caballus <FONT FACE=Symbol>;¾</FONT>; Linnaeus, 1758). Brazilian Journal of Veterinary Research and Animal Science, 38(2), 66-68. https://doi.org/10.1590/S1413-95962001000200004

Issue

Section

BASIC SCIENCES

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