平滑肌活性对兔肠系膜上静脉环箍应力应变关系的影响  

The Effect of Activity of Smooth Muscles on the Relationship of Circumferential Stress Strain of Superior Mesenteric Veins in Rabbits

作　　者：成海平[1] 刘正津[2] 邹昭文[3] 

机构地区：[1]第三军医大学西南医院康复科生物力学实验室,重庆400038 [2]第三军医大学基础部解剖教研室,重庆400038 [3]重庆建筑大学理论力学教研室,重庆400030

出　　处：《生物医学工程学杂志》1998年第3期231-233,255,共4页Journal of Biomedical Engineering

摘　　要：将１４只家兔的肠系膜上静脉（ＳＭＶ）随机分为两组：Ⅰ（正常组）和Ⅱ（平滑肌失活组）。通过充压试验结果表明：兔ＳＭＶ环箍应力应变关系为指数函数关系，平滑肌活性对兔ＳＭＶ材料常数Ｘ２有明显影响，材料常数Ｘ２组间比较有显著性差异（Ｐ＜０－０５），材料常数Ｘ１组间比较差异无显著性。认为Ｘ２是平滑肌活性参数。The superior mesenteric veins (SMV) of 14 rabbits were divided into two groups for experiment of inflation pressure,namely the normal group and the inactivated smooth muscles group.The results showed that the relationship of circumferential stress strain of SMV could be expressed with the exponential equation.Constant X 2 is effected by the active condition of smooth muscles.The difference of the material constant X 2 between the two groups was statistically significant ( P <0.05),but the difference of the material constant X 1 between the two groups was not statistically significant ( P >0.05).These suggest that X 2 is the parameter concerning the activity of smooth muscles.

关 键 词：肠系膜上静脉 平滑肌 活性 力学性质 

分 类 号：R331.34[医药卫生—人体生理学] R318.01[医药卫生—基础医学]