Origin and distribution of the ischiatic nerve in mixed-breed sheep

Authors

  • Bruno Gomes Vasconcelos Paulista State University Júlio de Mesquita Filho, Faculty of Veterinary Medicine of Araçatuba, Araçatuba, SP
  • Márcia Carolina Domingues Santos Faculty of Veterinary Medicine, Federal University of Uberlandia, Uberlândia, MG
  • Amilton Cesar dos Santos University of Sao Paulo, School of Veterinary Medicine and Animal Science, São Paulo, SP
  • Diego Carvalho Viana School of Veterinary Medicine and Animal Science, University of Sao Paulo, São Paulo, SP
  • Angelita das Graças de Oliveira Honorato Federal University of Uberlandia, Faculty of Veterinary Medicine, Uberlândia, MG
  • Cheston César Honorato Pereira University of Rio Verde, Rio Verde, GO
  • Vicente Borelli University of Sao Paulo, School of Veterinary Medicine and Animal Science, São Paulo, SP
  • Frederico Ozanam Carneiro e Silva Federal University of Uberlandia, Faculty of Veterinary Medicine, Uberlândia, MG

DOI:

https://doi.org/10.11606/issn.1678-4456.v51i2p102-110

Keywords:

anatomy, innervation, lumbosacral plexus, small ruminants

Abstract

Current research studied, by dissection, the origin and distribution of the ischiatic nerve in 30 fetuses of mixed-breed male or female sheep (Ovis aries), obtained from abortions, stillborns and natural deaths of pregnant females on farms in the Triângulo Mineiro region, state of Minas Gerais, Brazil. Formaldehyde 10% was injected through the cannulation of descending thoracic aorta and the material was kept immersed in the solution for at least 48 hours before dissection. The ischiatic nerve originated from the ventral branch of the last lumbar spinal nerve, either from the sixth lumbar spinal nerve (L6) or from the seventh (L7), when present, and from the ventral branches of first and second sacral spinal
nerves (S1 and S2, respectively), and possibly from the ventral branch of third sacral spinal nerve (S3). The ischiatic nerve provided branches to the superficial gluteal, middle gluteal, accessory gluteal, deep gluteal, gemelli, quadratus femoris, adductor, biceps femoris, semitendinosus and semimembranosus muscles. The tibial and common peroneal nerves were the terminal branches of the ischiatic nerve, originating distally towards the greater trochanter of the femur bone. Wilcoxon’s test (0.05) showed that statistically there were no significant differences between the frequencies of the muscular branches of the ischiatic nerve and the antimeres, regardless of the number of muscular branches.

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Published

2014-09-23

Issue

Section

ARTICLES

How to Cite

1.
Vasconcelos BG, Santos MCD, Santos AC dos, Viana DC, Honorato A das G de O, Pereira CCH, et al. Origin and distribution of the ischiatic nerve in mixed-breed sheep. Braz. J. Vet. Res. Anim. Sci. [Internet]. 2014 Sep. 23 [cited 2024 Apr. 17];51(2):102-10. Available from: https://www.revistas.usp.br/bjvras/article/view/77752