Branching and distribution of the phrenic nerves in the diaphragm of Brazilian Northeast asses (Asinus asinus)

Authors

  • Adelmar Afonso de Amorim Júnior Universidade Federal de Pernambuco, Faculdade de Medicina, Recife, PE
  • Irvênia Luiza de Santis Prada Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, São Paulo, SP
  • Maria Angélica Miglino Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, São Paulo, SP

DOI:

https://doi.org/10.11606/issn.2318-3659.v33isupl.p261-269

Keywords:

Diaphragm, Phrenic nerves, Donkeys, Anatomy.

Abstract

The results obtained from the study of 30 diaphragms of adult asses {Asinus asinus), extracted from 15 male and 15 female animals from the Brazilian Northeastern region, allowed us to reach the following conclusions: 1) The phrenic nerves more frequently result in a lumbocostal trunk and sternal branch, either right (76.7%) or left (53.3%); symmetric disposition was registered in some pieces (43.3%); 2) The lumbar branches are destined to the corresponding crura (pars lumbalis); the right branches give small branches to the medial left crus (3.3%), to the right dorsal foliole (6.7%) and to the left dorsal foliole (3.3%), and the left
ones also give small branches to the medial right crus (3.3%) to the left dorsal foliole (13.3%) and to the ventral foliole (6.7%);
3) The costal branches are distributed to the dorsal region of the pars costalis of each respective side, either right or left, to the right side of the ventral region (3.3%) and to the right dorsal foliole (3.3%), and the left one to the left dorsal foliole (10.0%); 4) The sternal branches are destined to the pars sternalis and ventral region of the pars costalis at the same side; at the right side, they give small branches to the vena cava caudalis (3.3%), or to the ventral foliole (3.3%).

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Published

1996-12-03

Issue

Section

BASIC SCIENCES

How to Cite

Branching and distribution of the phrenic nerves in the diaphragm of Brazilian Northeast asses (Asinus asinus). (1996). Brazilian Journal of Veterinary Research and Animal Science, 33(supl.), 261-269. https://doi.org/10.11606/issn.2318-3659.v33isupl.p261-269