Comparative analysis of origin and branches of phrenic nerve in the diaphragm of the crab-eating fox (Cerdocyon thous) and domestic dog (Canis lupus familiaris)

Autor: Ricardo Diniz Guerra e Silva, Ana Elisa Fernandes de Souza Almeida, Erica Augusta dos Anjos Cerqueira da Silva, Nayone Lima Lantyer-Araujo, Marta Adami, Márcia Maria Magalhães Dantas de Faria, João Moreira da Costa-Neto, Emanoel Ferreira Martins-Filho
Rok vydání: 2021
Předmět:
Zdroj: Anatomia, histologia, embryologiaREFERENCES. 51(1)
ISSN: 1439-0264
Popis: The crab-eating fox (Cerdocyon thous) is a canid widely distributed throughout South America, considered the only representative of the gender. There is a lack of information about anatomical aspects of the species, mainly regarded of nervous system anatomy. For clinical and surgical approaches of these animals, the domestic dog is adopted as anatomophysiological model. So, the aim of the present study was to analyse origin and branches of the phrenic nerve in the diaphragm of crab-eating fox compared to domestic dog. Four specimens of Cerdocyon thous and four of Canis lupus familiaris were used. The phrenic nerve originated from the ventral branches of the fifth (C5), sixth (C6) and seventh (C7) cervical spinal nerves. Phrenic nerves were distributed in the diaphragm as lumbocostal trunk and sternal branch (100%) in the crab-eating fox, and in costosternal trunk and lumbar branch (75%) and lumbocostal trunk and sternal branch (25%) in the domestic dog. In both species, the lumbar branch innervates the diaphragm pillars, the costal branch addresses all costal region, and the sternal branch distributes in the costal ventrolateral region and the sternal part of the diaphragm, to the left and to the right.
Databáze: OpenAIRE
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