咬力-咬曲线和被动张力成本在澳门mulatta
Stephanie L Canington1, Carla Escabi2, Michael L Platt2,3,4
1Dept. of Basic and Translational Sciences, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA.
The Journal of experimental biology
|March 6, 2026
概括
的肌中的被动力很小,不会显著限制口. 这表明,的下巴附加器可能适应在养行为期间更宽的口腔开口.
科学领域:
- 生物力学 生物力学
- 哺乳动物解剖学 哺乳动物解剖学
- 功能性形态学 功能性形态学
背景情况:
- 假设大肌的被动力量通过限制大的开口来保护关节.
- 关于被动下肌肉力量的先前研究仅限于非灵长类哺乳动物.
研究的目的:
- 在生物体内测量 (Macaca mulatta) 的被动咬伤力.
- 为了确定被动力如何转化为咬伤力在闭塞表面.
- 评估被动力量在限制口腔行为中的作用.
主要方法:
- 在体内测量了前部 (I1) 和后部 (M1) 咬伤点的被动咬伤力,通过八只的各种线性间隙.
- 在一系列线性间隙中收集了两只的前咬点的活咬力数据.
- 利用Hill类型的肌肉模型来分析主动和被动的力量产生.
主要成果:
- 的被动咬伤力随着口的增加而增加,并且在M1比I1咬伤点更大.
- 在的闭合表面,被动咬伤力相对较小.
- 数据表明,的下巴附加肌肉表现出高度的服从性,可能允许更大的口腔.
结论:
- 被动力量在的口限制方面起到最小的作用.
- 这些发现代表了关于灵长类动物被动咬伤张力的第一个经验数据.
- 的高肌肉依从性可能是适应需要大嘴巴的行为.
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