机能实验10班第4组

1、输One.Wedothisexperimentendedtoreigninvitro输One.Wedothisexperimentendedtoreigninvitrotounderstandtheheartbullfrogobservedthe constant remyocardialcontractilityeffectsonmyocardialcontractilefunction,alsodofullofheartfailure,cardiacdrugsaddedtoobserveDrugeffectsmyocardialcontractilefunction.beedtothehe

2、art,vena ubation,asexperimentalinput;andforconcentricleftaorticcannulation,heartstrokeexports;alltheotherligation;measurednormal,drug-inducedwhole-hearteddecaytimeandtheinputcardiacdrugsatdifferentsbeforetheloadofeachoutputandheartVentricularpreloadisequivalenttoventricularend-diastolic volume, avai

3、lable through the experiment, within a certain range, increasing venous return, ventricular end-diastolic volume increases, the length of myocardial fibers inearlystretch,correspondingtoenhancemyocardialcontractility,volumealsotoincrease.Heartfailure,cardiacfunctioncurvetoright;strengthentheheartmed

4、icine,increasedcardiacoutput,function curve tothe 吴心每搏有效心功吴和right;strengthentheheartmedicine,increasedcardiacoutput,function curve tothe 吴心每搏有效心功吴和2050,521蛙类手术器械，恒压灌流装置，动脉和静脉导管，10ml液，任氏液，B1.2.3.3134.5.分离肝左静脉约 45mm6.27.10cm10cm,20cm,30cm,40cm。8.234.5.分离肝左静脉约 45mm6.27.10cm10cm,20cm,30cm,40cm。8.2710.。15。（* 组心输出（* 组心输出搏心输出搏心输出搏心输出搏正常心衰0.470.04* 0.640.04* 0.800.07* 0.950.10* A药0.580.07* B药0.620.06* 0.760.07* 0.980.10* 1.240.18*的初长度为2.02.2Ca2+时心肌的张力，以及缩短的速率上。心功能不全时，心肌收缩性下降= X 但超过一定限度以后，如心率120/的初