盆部与会阴局部解剖学Pelvis and perineum.ppt

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1、Pelvic山东大学医学院解剖教研室李振华BonypelvisComposition:formedbypairedhipbones,sacrum,coccyx,andtheirarticulationsTwoportionsGreaterpelvisLesserpelvisTerminalline(pelvicinlet):formedbypromontoryofsacrum,arcuateline,pectinofpubis,pubictubercle,upperborderofpubicsymphysisPelvicoutlet:formedbytipofcoccyx,s

2、acrotuberousligament,ischialtuberosity,ramusofischium,inferiorramusofpubicsymphysisMusclesofpelvicwallPiriformm.Obturatorinternusm.MusclesoffloorofpelvisandpelivicdiaphragmMusclesoffloorofpelvisLevatorani肛提肌Levateoprostate前列腺提肌(pubovaginalis耻骨阴道肌)Puborectalis耻骨直肠肌Pubococcygeus耻尾肌andiliococ

3、cygeus髂尾肌Coccygeus尾骨肌Pelivicdiaphragm盆膈Superiorfasciaofpelvicdiaphragm盆膈上筋膜Levatorani肛提肌Coccygeus尾骨肌Inferiorfasciaofpelvicdiaphragm盆膈下筋膜PelvicfasciaParietalpelvicfasciaAcontinuationofthetransversefasciaintothepelvis.ItcovesthepiriformisandobturatorinternusAttachestothearcuatelineofthepubisa

4、ndilium,thickensovertheobturatorinternustoformthearcustendineus,theoriginofportionsofthelevatoranimuscleAtthetendinousarchoflevatoraniitsplitstocovebothsuperiorandinferiorsurfacesofthelevatoraniassuperiorandinferiorfasciaofpelvicdiaphragmVisceralpelvicfasciaLiesbetweentheperitoneumandthepel

5、vicvisceraItisacontinuationoftheextraperitonealconnectivetissueEnsheathesretroperitonealvisceraandformsseptabetweenretroperitonealorgansRectovesicalseptum直肠膀胱隔Rectovaginalseptum直肠阴道隔Retropubicspace耻骨后隙LiesbetweenpubicsymphysisandurinarybladderPararectalspace直肠周间隙LiesaroundtherectusRetrorect

6、alspace直肠后隙Commoniliacartery髂总动脉CommoniliacarteryContinuationofabdominalaortaatlevelofL4vertebraTerminatesinfrontofsacroiliacjointbydividingintointernalandexternaliliacarteriesInternaliliacartery髂内动脉ParietaliliacarteryObturatora.闭孔动脉Iliolumbera.髂腰动脉Lateralsacrala.骶外侧动脉Superiorgluteala.臀上动脉I

7、nferiorgluteala.臀下动脉VisceralbranchesUmbilicala.脐动脉→superiorvesicala.膀胱上动脉Inferiorvesicala.膀胱下动脉Uterinea.子宫动脉Inferiorrectala.直肠下动脉Internalpudendala.阴部内动脉Uterinea.子宫动脉—about2cmfromneckofuterusitcrossesaboveandinfrontofureterInternalpudendalartery阴部内动脉Perin