Brachial plexus formation and the nervous territories on thoracic limb of Arctocephalus australis

Authors

  • Daniel Alexandre Stüpp de Souza Universidade Federal do Rio Grande do Sul, Departamento de Zoologia, Laboratório de Ornitologia e Mastozoologia, Porto Alegre, RS
  • Tiane Ferreira de Castro Universidade Federal do Rio Grande do Sul, Departamento de Zoologia, Laboratório de Ornitologia e Mastozoologia, Porto Alegre, RS
  • Raphaela da Cunha Franceschi Universidade Federal Rio Grande do Sul, Instituto Ciências Básicas Saúde, Departamento Fisiologia, Laboratório Neurobiologia Comparada, Porto Alegre, RS
  • Rodolfo Pinho Silva Filho Fundação Universidade Federal de Rio Grande do Sul, Centro de Reabilitação de Animais Marinhos, Porto Alegre, RS
  • Malcon Andrei Martinez Pereira Universidade Federal Rio Grande do Sul, Instituto Ciências Básicas Saúde, Departamento Fisiologia, Laboratório Neurobiologia Comparada, Porto Alegre, RS

DOI:

https://doi.org/10.11606/issn.1678-4456.bjvras.2010.26842

Keywords:

Brachial plexus, Arctocephalus australis, Thoracic limb

Abstract

For the study concerning the brachial plexus (BP) and the nervous territories of the thoracic limb of South American Fur Seal (Arctocephalus australis), two animals had been used. Their skin was removed and the musculature of the thoracic limb and pectoral region was identified. After that compresses of glacial acetic acid solution of 3% had been applied in the musculature, in order to facilitate the carried through dissection. In analyzed specimens it was observed the emergency of BP from the sixth cervical nerve until the first thoracic nerve. From these four roots trunks of nerves of the same number are formed, whose ventral branches will constitute its arrangement and territorial distribution. From these four trunks emerge the 12 component nerves of the BP, some of them come from only one segment (supra scapular, cranial pectoral, lateral thoracic, thoraco-dorsal and long thoracic), while others come from more than a segment (sub scapular, muscle-cutaneous, axillary, median, caudal pectoral, ulnar and radial). In this direction,this observed constancy in the innervation of the musculature, joints and bones of the thoracic limb, led us to infer that a definite pattern in the delimitation of the nervous territories clearly exists.

Downloads

Download data is not yet available.

Published

2010-04-01

How to Cite

Souza, D. A. S. de, Castro, T. F. de, Franceschi, R. da C., Silva Filho, R. P., & Pereira, M. A. M. (2010). Brachial plexus formation and the nervous territories on thoracic limb of Arctocephalus australis. Brazilian Journal of Veterinary Research and Animal Science, 47(2), 160-166. https://doi.org/10.11606/issn.1678-4456.bjvras.2010.26842

Issue

Section

UNDEFINIED

Most read articles by the same author(s)