FUNCTIONAL BASES OF FIBER LENGTH AND ANGULATION IN MUSCLE
FUNCTIONAL BASES OF FIBER LENGTH AND ANGULATION IN MUSCLE
复制标题
DOI：
10.1002/jmor.1051920106
复制
发表时间：
1987-04-01
影响因子：
1.5
通讯作者：
DEVREE, F
中科院分区：
文献类型：
--
作者：
GANS, C;DEVREE, F
观察到的解剖肌肉纤维在角度和长度上的差异可能反映了两种不同的力学要求：(1)针状排列，反映生理横截面的增加；(2)肌节同等位置的排列，可能与协调有关。观察到的纤维角度和长度的差异对肌节的反应有不同的影响，特别是对它们的缩短程度和速度以及它们可能产生的力。对这些影响的基本机制和肌肉的各种排列进行了综述。对蜥蜴复杂的下颌外收肌的纤维长度和角度进行了立体测量；这些值与肌肉显示等效性的假设很好地相关，并表明羽化的角度不是那么恒定。提出了肌肉结构和功能研究的大纲，详细介绍了估计力量和评估肌肉和纤维位置所需的各种信息。
The differences in angulation and length observed for the fibers of anatomical muscles may reflect two distinct mechanical requirements: (1) arrangement for pinnation, reflecting an increase in physiological cross-section and (2) arrangement for equivalent placement of sarcomeres, possibly associated with coordination. The observed differences in fiber angulation and length have different effects upon the responses of sarcomeres, specifically on their extent and rate of shortening and on the force they may generate. The basic mechanisms governing these effects and the various arrangements of muscles are reviewed. Fiber length and angulation in the complex M. adductor mandibulae externus 2 of a lizard were measured stereotactically; these values correlate well with the hypothesis that the muscle shows equivalence and demonstrate that angulation for pinnation is less constant. An outline for the study of muscle architecture and function, detailing the kinds of information required to estimate forces and evaluate muscle and fiber placements, is presented.