《脉管系统和心》PPT课件

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1、Angiology脉管学山东大学医学院解剖教研室Angiology脉管学CompositionCardiovascularsystem心血管系统Lymphaticsystem淋巴系统Thecardiovascularsystem心血管系统OrganizationHeart心AmusclepumptomaintaintheflowofbloodConsistoffourchambers(rightandleftatria,rightandleftventricles)Artery(a.)动脉Carrybloodawayfromthehea

2、rtVein(v.)静脉CarrybloodbacktotheheartCapillary毛细血管Microscopicvessels,theareaofexchangebetweenbloodandtissuefluidThecardiovascularsystem心血管系统BloodcirculationSystemiccirculation体循环Leftventricle→aortaanditsbranches→capillariesofbody→superiorandinferiorvenacava→rightatriumPul

3、monarycirculation肺循环Rightventricle→pulmonarya.→capillariesoflung→pulmonaryv.→leftatriumThecardiovascularsystem心血管系统Vascularanastomosis血管吻合Anastomosisbetweena.Anastomosisbetweenv.Arteriolovenularanastomosis动静脉吻合Collateralvessels侧副管Collateralcirculation侧支循环Positionofthehea

4、rtLieswithinthepericardiuminmiddlemediastinumBehindthebodyofsternumandcoastalcartilages2to6Infrontofthoracicvertebrae5to8Athirdofitliestotherightofmedianplanand2/3totheleftSurfacesoftheheartPyramidalinshape,somewhatlargerthanaclosedfistOneapexOnebaseTwosurfaceThreeborder

5、sFoursulcusesCardiacapex心尖FormedbyleftventricleDirecteddownwards,forward,andtotheleftLiesatthelevelofthefifthleftintercostalspace,1-2cmmedialtotheleftmidclavicularline(9cmfromthemidline)SurfacesoftheheartSurfacesoftheheartCardiacbase心底Formedbytheleftatriumandtoasmallexte

6、ntbytherightatriumFacesbackward,upwardandtotherightContinuouswiththelargevesselsSurfacesoftheheartSternocostalsurface胸肋面Formedmainlybytherightatriumandrightventricle,andalesserportionofitsleftisformedbytheleftauricleandventricleDirectedforwardsandupwardsLeftandrightauric

7、les左、右心耳SurfacesoftheheartDiaphragmaticsurface膈面Formedtheventricles－chieflytheleftventricleDirectedbackwardsanddownwards,andrestuponthecentraltendonofthediaphragmSurfacesoftheheartBordersoftheheartRightborder右缘VerticalandroundFormedentirelybyrightatriumLeftborder左缘RoundM

8、ainlyformedbytheleftventricleandpartlybytheleftauricleInferiorborder下缘HorizontalandsharpFormedbytherigh