簇绒卷尾猴（僧帽卷尾猴）二腹肌中的纤维类型分布。

Fiber types distribution in the digastric muscle of tufted capuchin monkey (Cebus apella).

作者信息

Andreo J C, Pai V D, Navarro J A, de Oliveira J A

机构信息

Department of Morphology, UNESP Campus of Botucatu, Rubiao, São Paulo, Brazil.

出版信息

Anat Histol Embryol. 1994 Sep;23(3):226-31. doi: 10.1111/j.1439-0264.1994.tb00471.x.

DOI:10.1111/j.1439-0264.1994.tb00471.x

PMID:7864396

Abstract

Fiber types distribution in the digastric 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 Oxidative), 38.4% FOG (Fast Oxidative 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.

摘要

通过NADH - TR、肌球蛋白 - ATP酶（在碱性和酸性预孵育后）以及SDH组织化学反应，研究了簇绒卷尾猴二腹肌中的纤维类型分布。发现了三种不同类型的纤维，它们呈均匀分布。纤维的百分比和类型如下：18.2%为慢氧化型（SO），38.4%为快氧化糖酵解型（FOG），43.4%为快糖酵解型（FG）。FG纤维显示出最大的面积。快肌纤维的相对高浓度（81.2%）似乎表明该肌肉与下颌运动的加速和快速有关。由SO + FOG纤维（56.6%）代表的有氧代谢表明，该肌肉除了与下颌下降有关的作用外，还具有其他作用。