最新心脏大体解剖-药学医学精品资料.ppt

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1、最新心脏大体解剖-药学医学精品资料Pulmonary&SystemicCircuitsarteryveincapillariesLocationofHeartwithinThoracicCavityCardiacMuscleDifferencetoskeletalmuscle?IntercalatedDiscs•Desmosomes&• GapJunctionsfunctionalsyncytium=fusedmassofcellsFibrousSkeletonLotsofcollagenandelasticfibersintheconnectivetissueoftheheart.func

2、tion:?support(e.g.:fibrousringssupportingvalves)preventsover-expansionelasticityhelpstoreturntooriginalshapephysicalseparationofatriafromventriclesFibrousskeleton=internalc.t.networkSurfaceAnatomyofHeartAuricleofatria(expandable)Coronarysulcus(betweenatria&ventricles)Ant.&post.interventricularsulcu

3、sBase(3rdcostalcartilage)vs.apex(5thintercostalspace)Vesselsentering&leavingtheheartSectional(Internal)HeartAnatomyAtria&ventriclesInteratrial&interventricularseptaeValves(fibroustissue)Pectinatemuscles(auricles&ant.atria)Trabeculaecarneae(ventricles)Chordaetendinae&papillarymusclesLeftvs.RightVent

4、ricleLeft:highpressurepumpRight:lowpressurepumpventricularcontractionalsofunctionsas“suctionpump”4SetsofValves=MitralvalveMitralValveProlapseMostcommoncardiacvariation(5-10%ofpopulation)MitralvalvecuspsdonotcloseproperlyRegurgitationduringleftventricularsystoleHowcanyoudiagnose?Notlifethreatening;m

5、aybelifestylethreateningfunctionofvalves:??VentricularSystole:AuscultationofHeartSounds:1stHS:atbeginningofventricularcontraction,dueto?2ndHS:atbeginningofventriculardiastole,dueto?CoronaryBloodVesselsCoronaryarteries:firstbranchesofftheascendingaorta.coronaryveinscoronarysinusrightatrium(inferiort

6、oopeningofinferiorvenacava)posteriorviewCoronaryArteryDisease(CAD)PETscanthebrighterthecolorthegreaterthebloodflowthroughtissuedueto?consequences?MyocardialInfarction(MI)~1.3MioMIs/yearinUSMostcommonlyduetosevereCAD(coronarythrombosis)Ischemictissuedegenerates→nonfunctionalarea=infarctPredisposingf

7、actors?ConductingSystemofHeart(=bundleofHis)CardiacCycle,EKG,AutonomicControlofHeartRatecoveredinPhysiologytheend单元评价检测(一)1、选B。A项“贮”读“zhù”,C项“酿”读“niàng",D项“和”读“hè”。2、选C。“看风使舵”是贬义词,用在沉着、机智、灵活的主持人身上不合适。3、选D。病