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

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