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Innervation of Carcharias taurus (Rafinesque, 1810) mandibular musculature (Odontaspididae, Lamniformes, Elasmobranchii)

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Author(s):
André Luis da Silva Casas
Total Authors: 1
Document type: Master's Dissertation
Press: São Paulo.
Institution: Universidade de São Paulo (USP). Faculdade de Medicina Veterinária e Zootecnia (FMVZ/SBD)
Defense date:
Examining board members:
Arani Nanci Bomfim Mariana; Otto Bismarck Fazzano Gadig; José Roberto Kfoury Junior
Advisor: Arani Nanci Bomfim Mariana
Abstract

During this study were used fifteen of Carcharias taurus (Rafinesque, 1810) (Odontaspididae, Lamniformes, Elasmobranchii) shark heads. The analised material was obteined in Terminal de Pesca de Santos, located in Santos, São Paulo. The material was descarded by the fishers because it hasn´t none comercial value. The heads dissection is foccated in the caracterization of the mandibular muscles and to discrebed the mandibular branch of the trigeminal nerve innervation as well. The C. taurus mandibular muscles are represented by: muscle pré-orbital, muscle levantador do palatoquadrado, muscle quadrado-mandibular and muscle intermandibular. The origin of the trimeginal nerve of C. taurus is located in a lateral portion of the medula oblonga. In the orbita it ramificates to originate de mandibular branch that inervates the muscles which is derived from the mandibular arch. The mandibular branch of the trigeminal nerve\'s proximal branches inervetes the muscle levantador do palatoquadrado, the muscles pré-orbitall and quadrado-mandibular receives fibers from the intermediate branches of the mandibular branch of the trigeminal nerve and the distal ramification of the mandibular branch are visualised in the muscle intermandibularis. (AU)

FAPESP's process: 03/03102-7 - Innervation of Carcharias taurus (Odontaspididae, Lamniformes, Elasmobranchii) mandibular musculature
Grantee:André Luis da Silva Casas
Support Opportunities: Scholarships in Brazil - Master