《心脏血管系统》ppt课件

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1、TheHeartandAngiology同济大学医学院解剖教研室孙红斌CompositionCardiovascularsystem心血管系统Lymphaticsystem淋巴系统ThecardiovascularsystemOrganizationHeart心Amusclepumptomaintaintheflowofblood,Consistoffourchambers(rightandleftatria,rightandleftventricles)Artery动脉a.carrybloodaway

2、fromtheheartVeins静脉v.carrybloodbacktotheheartCapillary毛细血管microscopicvessels,theareaofexchangebetweenbloodandtissuefluidBloodcirculationSystemiccirculation体循环leftventricle→aortaanditsbranches→capillariesofbody→superiorandinferiorvenacava→rightatriumPulmo

3、narycirculation肺循环rightventricle→pulmonarya.→capillariesoflung→pulmonaryv.→rightatriumVascularanastomosis血管吻合Anastomosisbetweena.Anastomosisbetweenv.Arteriolovenularanastomosis动静脉吻合Collateralvessels侧副管Circulation侧支循环RectalvenousplexusPositionLieswithinth

4、epericardiuminmiddlemediastinumBehindthebodyofsternumandcoastalcartilages2to6Infrontofthoracicvertebrae5to8Athirdofitliestotherightofmedianplanand2/3totheleftExternalcharacteristics－ahollowmuscularorgan,pyramidalinshape,somewhatlargerthanaclosedfist;cons

5、istsoffourchanbers(rightandleftatria,rightandleftventricles)Cardiacapexisformedbyleftventricleandisdirecteddownwardsandforwardstotheleft.Itliesatthelevelofthefifthleftintercostalspace,1~2cmmedialtotheleftmidclavicularline(9cmfromthemidline)Cardiacbaseisf

6、ormedbytheleftatriumandtoasmallextentbytherightatrium.Itfacesbackward,upwardandtotherightTwosurfaceSternocostalsurfaceisformedmainlybytherightatriumandrightventricle,andalesserportionofitsleftisformedbytheleftauricleandventricle.Itisdirectedforwardsandup

7、wardsDiaphragmaticsurfaceisformedtheventricles－chieflytheleftventricle,directedbackwardsanddownwards,andrestuponthecentraltendonofthediaphragmThreebordersRightborder－vertical,isformedentirelybyrightatriumLeftborder－round,ismainlyformedbytheleftventriclea

8、ndpartlybytheleftauricleInferiorborder－horizontal,isformedbytherightventricleandcardiacapexFourgroovesCoronarysulcus冠状沟(circularsulcus)whichmarksthedivisionbetweenatriaandventricles,containsthetrunksofthecoronaryvesselsand