Dissertation Research: Thoracic Specialization, Integration,and Locomotor Habit in the Lagomorpha

论文研究：兔形目胸科特化、整合和运动习惯

• 批准号: 9321638
• 负责人: Dennis Bramble
• 金额: $ 0.59万
• 依托单位: University of Utah
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-05-01 至 1996-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9321638&HistoricalAwards=false
• 关键词: Dissertation; Research; Thoracic; Specialization; Integration

9321638 Bramble This is a comparative morphological study that addresses the functional relationships between thoracic design and locomotor behavior among highly cursorial, moderately cursorial, and non- cursorial members of the order Lagomorpha (hares, cottontails, and pikas). A novel approach will be take to understand the functional morphology of the thoracic complex: the mechanical role of the lungs and the interaction of lungs, heart, and ribs, during locomotion will be examined. A previously unexplored function of the lungs within the thorax will be modeled: pneumatic stabilization. This study will test the hypothesis that lungs, in addition to their role as gas exchangers, may act as pneumatic stabilizers of the chest walls and heart and that this mechanism will be positively correlated with running ability. A model will be developed which describes the integrated function of the mammalian thoracic complex during exercise based on the morphology, material properties, and mechanical interactions of its constituent elements. High speed cineradiographic analysis will be used in dynamic tests of both cadavers and live rabbits in order to describe the interactions of elements of the thoracic complex and to test essential predictions of the pneumatic stabilization model. ***

9321638 Bramble 这是一项比较形态学研究，旨在解决兔形目（野兔、棉尾兔和鼠兔）的高度粗略、中度粗略和非粗略成员之间的胸部设计和运动行为之间的功能关系。将采用一种新颖的方法来了解胸廓复合体的功能形态：将检查运动过程中肺的机械作用以及肺、心脏和肋骨的相互作用。将模拟胸腔内肺部先前未探索的功能：气动稳定。这项研究将检验这样的假设：肺除了作为气体交换器的作用之外，还可以充当胸壁和心脏的气动稳定器，并且这种机制将与跑步能力呈正相关。将开发一个模型，根据其组成元素的形态、材料特性和机械相互作用来描述哺乳动物胸廓复合体在运动过程中的综合功能。高速电影放射摄影分析将用于尸体和活体兔子的动态测试，以描述胸部复合体元素的相互作用并测试气动稳定模型的基本预测。 ***