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You are here: Home / Associated publications / Belgian Journal of Zoology / Bibliographic References / Fibre composition of the masticatory muscles of Pteropus giganteus (Megachiroptera).

G DEGUELDRE and F DEVREE (1991)

Fibre composition of the masticatory muscles of Pteropus giganteus (Megachiroptera).

BELGIAN JOURNAL OF ZOOLOGY, 121(2):279-294.

Routine histochemistry was used to study fibre type composition of the masticatory muscles of the frugivorous flying fox, Pteropus giganteus (BRUNNICH, 1782). Frozen sections were stained for alkaline- and acid-stable ATPase, NADH-tetrazolium reductase and alpha-glycerophosphate dehydrogenase, and fibres were subsequently identified as slow-twitch oxidative (SO), fast-twitch oxidative glycolytic (FOG) and fast-twitch glycolytic (FG). Based upon relative proportions of fibre types, muscles and their subdivisions can be classified into three groups: group 1 muscles (superficial and medial temporales), containing less than 10 \% of SO fibres, group 2 muscles (superficial and deep masseter, zygomaticomandibularis, deep temporalis, medial pterygoid), containing 20-30 \% of SO fibres, and group 3 muscles (anterior and posterior digastrics), containing 30-50 \% of SO fibres. Moreover, in group 3 muscles less than 5 \% of the fast twitch fibres are fatigue resistant (FOG), whereas in both group 1 and 2 muscles, about 20-30 \% of the fast-twitch fibres are FOG. The histochemical profile of the masticatory muscles is correlated directly with their contraction characteristics and indirectly with their EMG patterns.

HISTOCHEMISTRY; CONTRACTION CHARACTERISTICS; MASTICATORY MUSCLES
BJZ

ISSN 2295-0451 (online version)
ISSN 0777-6279 (printed version)
impact factor 2015: 0,87.

Editor-in-Chief:
Prof. Dr. Isa Schön
Royal Belgian Institute of Natural Sciences
Vautierstraat 29
1000 Brussels, Belgium

 



1863-1903
Annales de la Société malacologique de Belgique
 
1903-1923
​Annales de la Société royale malacologique et zoologique de Belgique
 
1923-1989
Annales de la Société Royale Zoologique de Belgique
 
1989-
Belgian Journal of Zoology