Anatomical variation of the anterior belly of the digastric muscle: case report and clinical implications
Braz. j. morphol. sci
;
28(1): 72-75, Jan.-Mar. 2011. ilus
Artigo
em Inglês
| LILACS
| ID: lil-644126
ABSTRACT
The digastric muscle is a suprahyoid muscle composed of two bellies connected by an intermediate tendon.This muscle participates in deglutition and mandibular movements. The anterior belly of the digastric muscleis localized superficially to the mylohyoid and deeply to the platysma muscle. During dissection of this regionof an embedded cadaver, an accessory anterior belly of digastric muscle was observed bilaterally. The accessorybellies were similar but not symmetrical. They were composed of two segments, one long and one short, onboth sides, and when observed together these appeared to form the letter X. The accessory fibers, on bothsides, originated from the anterior digastric muscle and inserted medially to the digastric fossa. Anatomicvariations of the digastric muscle may influence mastication and deglutition. Moreover, the accessory digastricmuscle affects diagnostic imaging and therapeutic procedures in head and neck surgery and must be consideredin procedures involving this area.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Músculos Faríngeos
/
Deglutição
/
Mastigação
Limite:
Adulto
/
Humanos
/
Masculino
Idioma:
Inglês
Revista:
Braz. j. morphol. sci
Assunto da revista:
Anatomia
Ano de publicação:
2011
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Nove de Julho University/BR
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