Functional morphology of the masticatory muscles ofMus musculus L.
The functional morphology of masticatory musclesofMus musculus L. is described. The study suggests that the Mm. masseter andpterygoideus internus act as an adductor of the mandible. The Mm. temporalis works as retractor,pterygoideus externus acts as a protractor and digastricus works as an abductor of the mandible. Among the skull components, zygomatic arch is well formed while the temporal fossa is poorly developed. The influence of muscular pull on the skull components is discussed.