Anatomy of the abdominal aorta in the hoary fox (Lycalopex vetulus, Lund, 1842)

  • Dara Rúbia Souza Silva Universidade Federal de Goiás, Regional Catalão, Instituto de Biotecnologia, Departamento de Ciências Biológicas
  • Mônica Duarte da Silva Universidade Federal de Goiás, Regional Catalão, Instituto de Biotecnologia, Departamento de Ciências Biológicas
  • Marcos Paulo Batista de Assunção Universidade Federal de Goiás, Regional Catalão, Instituto de Biotecnologia, Departamento de Ciências Biológicas
  • Eduardo Paul Chacur Universidade Federal de Goiás, Regional Catalão, Instituto de Biotecnologia, Departamento de Ciências Biológicas
  • Daniela Cristina de Oliveira Silva Universidade Federal de Uberlândia, Instituto de Ciências Biomédicas, Departamento de Anatomia Humana
  • Roseâmely Angélica de Carvalho Barros Universidade Federal de Goiás, Regional Catalão, Instituto de Biotecnologia, Departamento de Ciências Biológicas
  • Zenon Silva Universidade Federal de Goiás, Regional Catalão, Instituto de Biotecnologia, Departamento de Ciências Biológicas
Keywords: Abdominal aorta artery, Anatomy, Angiology, Cerrado canid, Hoary fox

Abstract

The hoary fox (Lycalopex vetulus, Lund, 1842) is the smallest Brazilian canid, whose weight varies between 2 and 4 kg, has a slender body, a small head, and a short and blackened snout. Despite being considered an endemic species, little is known about the hoary fox as it is one of the seven less studied canids in the world. Thus, this study aimed to describe the anatomy of the abdominal aorta artery of the hoary fox and to compare it with the pre-established literature data in domestic canids. For this purpose, we used two adult hoary foxes without definite age. We collected the corpses of these animals along roadsides of Catalão-GO, being later fixed and conserved in a 10% formalin solution. The results showed that the abdominal aorta in hoary fox is at the ventral face of the lumbar region vertebral bodies, being slightly displaced to the left of the median plane. The first branch is visceral, named celiac artery, followed by a paired parietal branch: the phrenic abdominal arteries. The third and fourth branches are the cranial mesenteric arteries and the right
and left are the renal arteries, respectively. The posterior branches of the renal arteries are equally visceral, paired, being called testicular arteries. Distal to the latter, both the caudal mesenteric artery and deep circumflex iliac arteries originate. Finally, two large external iliac arteries and its terminal branches composed of internal iliac arteries and the median sacral artery originate. In addition, five pairs of lumbar arteries originate alongside the abdominal segment of the aorta. Considering these findings, it is possible to conclude that despite the hoary fox being a wild animal, the anatomy of its abdominal aorta is very similar to that of domestic canids.

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Published
2018-12-21
How to Cite
Silva, D. R., Silva, M., Assunção, M. P., Chacur, E. P., Silva, D. C., Barros, R. A., & Silva, Z. (2018). Anatomy of the abdominal aorta in the hoary fox (Lycalopex vetulus, Lund, 1842). Brazilian Journal of Veterinary Research and Animal Science, 55(4), e146491. https://doi.org/10.11606/issn.1678-4456.bjvras.2018.146491
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