北京治疗白癜风到哪个医院好 http://pf.39.net/bdfyy/xwdt/肌肉收缩性质
实验目的学会坐骨神经腓肠肌标本的制备通过观察肌肉收缩的性质，了解神经冲动的频率和强度与肌肉收缩之间的关系明确阈下刺激、阈刺激、阈上刺激以及单收缩、不完全强直收缩和完全强直收缩的概念1.为什么在一定范围内骨骼肌的收缩张力会随着刺激强度的大小而变化？2.为什么随着刺激频率的增加，肌肉的收缩会逐渐复合而发生不完全强直收缩或完全强直收缩？1标本制备2连接刺激器和记录装置3实验内容这 c63.4,4.5,.9-41.7,-66C.1,46,49.1,43.7,47,56c-1.2,6.9,54.6,29.4,,21c44.2-6.5,81.4-30.1,79-39 c-3.6-13.4-94.5,19.3--26C39.6,7.5,32.1,3.1,27,0"begin="0.4s"dur="10s"rotate="auto"repeatcount="indefinite">是 c63.4,4.5,.9-41.7,-66C.1,46,49.1,43.7,47,56c-1.2,6.9,54.6,29.4,,21c44.2-6.5,81.4-30.1,79-39 c-3.6-13.4-94.5,19.3--26C39.6,7.5,32.1,3.1,27,0"begin="0.6s"dur="10s"rotate="auto"repeatcount="indefinite">虚 c63.4,4.5,.9-41.7,-66C.1,46,49.1,43.7,47,56c-1.2,6.9,54.6,29.4,,21c44.2-6.5,81.4-30.1,79-39 c-3.6-13.4-94.5,19.3--26C39.6,7.5,32.1,3.1,27,0"begin="0.8s"dur="10s"rotate="auto"repeatcount="indefinite">拟 c63.4,4.5,.9-41.7,-66C.1,46,49.1,43.7,47,56c-1.2,6.9,54.6,29.4,,21c44.2-6.5,81.4-30.1,79-39 c-3.6-13.4-94.5,19.3--26C39.6,7.5,32.1,3.1,27,0"begin="1s"dur="10s"rotate="auto"repeatcount="indefinite">实 c63.4,4.5,.9-41.7,-66C.1,46,49.1,43.7,47,56c-1.2,6.9,54.6,29.4,,21c44.2-6.5,81.4-30.1,79-39 c-3.6-13.4-94.5,19.3--26C39.6,7.5,32.1,3.1,27,0"begin="1.2s"dur="10s"rotate="auto"repeatcount="indefinite">验 c63.4,4.5,.9-41.7,-66C.1,46,49.1,43.7,47,56c-1.2,6.9,54.6,29.4,,21c44.2-6.5,81.4-30.1,79-39 c-3.6-13.4-94.5,19.3--26C39.6,7.5,32.1,3.1,27,0"begin="1.4s"dur="10s"rotate="auto"repeatcount="indefinite">推荐文章
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