Morphological features of the umbilical cord in equine (Equus caballus, Linnaeus, 1758)

Authors

  • Fernando 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, 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
  • Tatiana Carlesso dos Santos Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, São Paulo, SP

DOI:

https://doi.org/10.1590/S1413-95962001000500003

Keywords:

Horse, Vein, Artery, Umbilical cord

Abstract

The disposition and ramification of the arteries and veins of the umbilical cord from cross-bred equine in different pregnancy stages were studied. Thirty fetuses, 18 male and 12 female with age varying from 73 to 249 days, were used and the umbilical vessels were injected with Neoprene latex 650 colored solution and further dissected. The length of the umbilical cord varied from 28 to 70 centimeters (mean of 47.5 centimeters). The umbilical cord included the urachus, two arteries and one umbilical vein. This latter presented, in average, 20.5 cm in length, and was constituted of two (86.66%) or three (13.33%) tributary veins. Arteriovenous anastomoses, funicular vessels besides the vasa vasorum were also observed. Arteriovenous anastomoses were found in 83.33% of the cases, varying from one to eight, and presented the following disposition: transversal (57.14%), convergent (9.52%), oblique (28.57%), "H"-shaped (2.38%), "V" transversal (1.19%) and "X" transversal (1.19%).

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Published

2001-01-01

Issue

Vol. 38 No. 5 (2001)

Section

BASIC SCIENCES

License

The journal content is authorized under the Creative Commons  BY-NC-SA  license (summary of the license: https://creativecommons.org/licenses/by-nc-sa/4.0 | full text of the license: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode) 

How to Cite

1.
Carvalho F de SR, Miglino MA, Severino RS, Ferreira FA, Santos TC dos. Morphological features of the umbilical cord in equine (Equus caballus, Linnaeus, 1758). Braz. J. Vet. Res. Anim. Sci. [Internet]. 2001 Jan. 1 [cited 2024 Oct. 9];38(5):214-9. Available from: https://www.revistas.usp.br/bjvras/article/view/5873