医学英语 心脏PPT课件

医学英语心脏 1 SUMC2011 2012 Student scopy Thecardiovascularsystem 医学英语心脏 2 Whatisthecirculatorysystem WhatdoestheCVsystemdo InternalandexternalanatomyCardiaccycleHeartsoundsConductivesystemoftheheartBloodvesselsDiseasesoftheCVS 医学英语心脏 3 TheHeartandbloodvesselstogethermakeupthecardiovascularSystem CirculatebloodthroughoutentirebodyforTransportofoxygentocellsTransportofCO2awayfromcellsTransportofnutrients glucose tocellsMovementofimmunesystemcomponents cells antibodies Transportofendocrineglandsecretions 医学英语心脏 4 TheHeart locationinthorax 医学英语心脏 5 TheHeart locationinthorax ObliquePositionApex LeftofMidline 5thICS AnteriortorestofheartBase posteriorsurface sitsonvertebralcolumnSuperiorRight 3rdCostalCartilage 1 rightmidsternumSuperiorLeft 2ndCostalCartilage 1 leftmidsternumInferiorRight 6thCostalCartilage 1 rightmidsternumInferiorLeft 5thIntercostalSpaceatMidclavicularline 医学英语心脏 6 Serousmembrane Continuouswithbloodvessels TheHeart musclelayersandcoverings Connectivetiss Endothilium 医学英语心脏 7 ExternalHeartAnatomy Page44 医学英语心脏 8 TheHeart Chambers 医学英语心脏 9 Ourcirculatorysystemisadoublecirculatorysystem Thismeansithastwopartsparts therightsideofthesystemdealswithdeoxygenatedblood theleftsideofthesystemdealswithoxygenatedblood 医学英语心脏 10 Circulation Coronarycirculation thecirculationofbloodwithintheheart Pulmonarycirculation theflowofbloodbetweentheheartandlungs Systemiccirculation theflowofbloodbetweentheheartandthecellsofthebody 医学英语心脏 11 TheHeart Valves Bicuspid mitral Tricuspid AV PulmonaryAortic SL 医学英语心脏 12 HowdoestheHeartwork STEPONE 医学英语心脏 13 HowdoestheHeartwork STEPTWO 医学英语心脏 14 HowdoestheHeartwork Thecyclethenrepeatsitself STEPTHREE 医学英语心脏 15 医学英语心脏 16 FillingofHeartChambers theCardiacCycle Copyright 2003PearsonEducation Inc publishingasBenjaminCummings 医学英语心脏 17 TheHeart CardiacOutput Copyright 2003PearsonEducation Inc publishingasBenjaminCummings Cardiacoutput CO totalventblood minAmountofbloodpumpedbyeachsideoftheheartinoneminuteCO heartrate HR x strokevolume SV StrokevolumeVolumeofbloodpumpedbyeachventricleinonecontraction 医学英语心脏 18 S1 Whatisit closingofthebicuspidandtricuspidvalves closureoftheAVvalves ThePulmonicandAorticvalvesareopeningandbloodisbeingforcedintothearteriesS2 Whatisit ThesoundsarebecauseoftheclosingofthePulmonicandAorticvalves closureofthesemilunarvalves 医学英语心脏 19 医学英语心脏 20 ConductiveSystem Actionpotential electricalimpulsecausingthecontractionofheartmusclecells TheSAnode orpacemaker initiatestheheartbeatandcausestheatriatocontractonaverageevery0 85seconds TheAVnodeconveysthestimulusandinitiatescontractionoftheventricles ThesignalfortheventriclestocontracttravelsfromtheAVnodethroughtheatrioventricularbundletothesmallerPurkinjefibers 医学英语心脏 21 Electrocardiogram Anelectrocardiogram ECG isarecordingoftheelectricalchangesthatoccurinthemyocardiumduringacardiaccycle ThePwaveoccursjustpriortoatrialcontraction theQRScomplexoccursjustpriortoventricularcontraction andtheTwaveoccurswhentheventriclesarerecoveringfromcontraction 医学英语心脏 22 TheVascularSystem Copyright 2003PearsonEducation Inc publishingasBenjaminCummings 医学英语心脏 23 BloodVessels Anatomy Threelayers tunics TunicintimaEndotheliumTunicmediaSmoothmuscleTunicexternaMostlyfibrousconnectivetissue 医学英语心脏 24 ConductiveSystem Copyright 2003PearsonEducation Inc publishingasBenjaminCummings Figure11 5 医学英语心脏 25 TunicaexternaOutermostlayerelastinandcollagenStrengthens AnchorsTunicamediaMiddlelayerCircularSmoothMuscleVaso constriction dilationTunicaintimaInnermostlayerEndotheliumMinimizefrictionLumen 医学英语心脏 26 医学英语心脏 27 Artery Veindifferences 归纳 dtwlv 医学英语心脏 28 医学英语心脏 29 医学英语心脏 30 医学英语心脏 31 Coronaryarterycirculation 医学英语心脏 32 Pulse Pulse pressurewaveofbloodMonitoredat pressurepoints wherepulseiseasilypalpated 医学英语心脏 33 MeasuringArterialBloodPressure 医学英语心脏 34 CardiovascularDiseases Cardiovasculardiseasesincludethosethataffecttheheartandthosethataffecttheperipheralvascularsystem Theheartandbloodvesselsmaybeprimarilyattackedbythesediseasesortheymaybesecondarilyaffectedasaconsequenceofanotherdisease 医学英语心脏 35 RiskFactorsforCardiovascularDisease sdosp SmokingDiabetesObesityStressPhysicalInactivityHighBloodPressure 140 syst