Nerves of the Mandibular Musculature of the Sand Tiger Shark Carcharias taurus (Rafinesque, 1810) (Chondrichthyes: Odontaspididae)

Autor(es)

André Luis da Silva Casas ^[1] ; Wagner Intelizano ^[2] ; Marcelo Fernandes de Souza Castro ; Arani Nanci Bonfim Mariana ^[4]

Afiliação do(s) autor(es)

^[1] Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia. Departamento de Cirurgia - Brasil

^[2] Universidade Metropolitana de Santos. Faculdade de Medicina Veterinária. Laboratório de Anatomia Veterinária - Brasil

^[4] Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia. Departamento de Cirurgia - Brasil

• Tipo de documento: Artigo Científico
• Fonte: INTERNATIONAL JOURNAL OF MORPHOLOGY; v. 23, n. 4, p. 387-392, 2005-00-00.

Resumo

During this study, fifteen shark heads of sand tiger shark Carcharias taurus (Rafinesque, 1810) were analyzed. The studied material was obtained in the Santos Fishing Terminal, São Paulo, Brazil. The heads dissection was focused on the characterization of the mandibular muscles and on the description of the mandibular branch of the trigeminal nerve. The C. taurus mandibular muscles are represented by: m. preorbitalis, m. levator palatoquadrati, m. quadratomandibularis and m. intermandibularis. The origin of the trigeminal nerve of C. taurus is located in a lateral portion of the medulla oblongata. In the orbita, the trigeminal nerve branches off to originate the mandibular branch that innervates the muscles which are derived from the mandibular arch. The proximal branches of the trigeminal nerve mandibular branch innervate the m. levator palatoquadrati. The muscles preorbitalis and quadratomandibularis receive fibers from the intermediate branches of the trigeminal nerve mandibular branch and the distal ramification of the mandibular branch can be visualized in the m. intermandibularis (AU)

• Processo FAPESP: 03/03102-7 - Inervação da musculatura mandibular de Carcharias taurus (Odontaspididae, Lamniformes, Elasmobranchii)
• Beneficiário: André Luis da Silva Casas
• Modalidade de apoio: Bolsas no Brasil - Mestrado