The muscles of mastication of phascolarctos cinereus (Phascolarctidae: Marsupialia)

Davison C.V. and Young W.G. (1990) The muscles of mastication of phascolarctos cinereus (Phascolarctidae: Marsupialia). Australian Journal of Zoology, 38 3: 227-240. doi:10.1071/ZO9900227


Author Davison C.V.
Young W.G.
Title The muscles of mastication of phascolarctos cinereus (Phascolarctidae: Marsupialia)
Journal name Australian Journal of Zoology   Check publisher's open access policy
ISSN 1446-5698
Publication date 1990-01-01
Sub-type Article (original research)
DOI 10.1071/ZO9900227
Volume 38
Issue 3
Start page 227
End page 240
Total pages 14
Subject 1103 Clinical Sciences
1105 Dentistry
Abstract The muscles of mastication of the koala, Phascolarctos cinereus, were dissected, described, weighed and the areas of their origin and insertion were determined. In addition, the temporomandibular joint was described. The aim was to ascertain the relative contribution of those muscles to the jaw movements of the koala. The masseter and temporalis muscles were the principle group and could account for the major movements and forces generated in chewing. In contrast to other herbivorous mammals, the pterygoid muscles were small and probably exert fine motor control over the mandible and temporomandibular joints. The digastric and geniohyoid muscles were small, compatible with the limited gape in the animal.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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