FIBER TYPES DISTRIBUTION IN THE DIGASTRIC MUSCLE OF TUFTED CAPUCHIN MONKEY (CEBUS-APELLA)

被引:4
|
作者
ANDREO, JC
PAI, VD
NAVARRO, JAC
DEOLIVEIRA, JA
机构
[1] Department of Morphology, School of Odontology of Bauru, Botucatu
[2] Department of Morphology, School of Odontology of Bauru, Unesp, Araçatuba
[3] Department of Morphology, School of Odontology of Bauru, Sao Paulo
关键词
D O I
10.1111/j.1439-0264.1994.tb00471.x
中图分类号
R602 [外科病理学、解剖学]; R32 [人体形态学];
学科分类号
100101 ;
摘要
Fiber types distribution in the diagastric muscle of tufted capuchin monkey was studied by means of NADH-TR, myosin-ATPase, after alkaline and acid preincubations and SDH histochemical reactions. Three different types of fibers were found presenting an equal distribution. The percentage and types of fibers were as follow: 18.2 % SO (Slow Oxydative), 38.4 % FOG (Fast Oxydative Glycolytic) and 43.4 % FG (Fast Glycolytic). FG fibers revealed the largest area. The relatively high concentration of fast twitch (81.2 %) seems to indicate this muscle is involved with the acceleration and fast speed of jaw movements. Aerobic metabolism represented by SO + FOG fibers (56.6 %) suggests that this muscle possesses an additional role than that related to the lowering of the jaw.
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页码:226 / 231
页数:6
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