上肢肌和下肢肌课件

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1、Musclesofupperlimb上肢肌Themusclesofupperlimbaredividedinto:MusclesofshoulderMusclesofarmMusclesofforearmMusclesofhandMusclesofshoulderDeltoid三角肌Supraspinatus冈上肌Infraspinatus冈下肌Teresminor小圆肌Teresmajor大圆肌Subscapularis肩胛下肌deltoidsupraspinatusinfraspinatusteresminorteresmajorsubscapularisDeltoid三角肌Or

2、igin:lateralthirdofclavicle,acromion,andspineofscapulaInsertion:deltoidtuberosityofhumerusAction:abductsthearm，anteriorfibersflexandmediallyrotatearm;posteriorfibersextendandlaterallyrotatearmTeresmajor大圆肌Origin:dorsalsurfaceofinferiorangleofscapulaInsertion:crestoflessertubercleofhumerusAction

3、:mediallyrotatesandadductsarmdeltoidsupraspinatusinfraspinatusteresminorteresmajorsubscapularisMusclesofarmAnteriorgroupBicepsbrachii肱二头肌Coracobrachialis喙肱肌Brachialis肱肌PosteriorgroupTricepsbrachii肱三头肌bicepsbrachiicoracobrachialisbrachialistricepsbrachiiBicepsbrachii肱二头肌Origin:longhead,supraglen

4、oidtubercle;shorthead,coracoidprocessInsertion:radialtuberosityAction:supinatorofforearm,flexorofelbowjoint,weakflexorofshouldjointNervesupply:Musculocutaneousn.bicepsbrachiicoracobrachialisbrachialisTricepsbrachii肱三头肌Origin:longhead,infraglenoidtubercle;lateralhead,abovegrooveforradicaln.,medi

5、calhead,belowgrooveforradicaln.Insertion:olecranonofulnaAction:extendselbowjoint,longheadcanextendandadductshoulderjointTrilateralandquadrilateralforamina三边孔和四边孔Betweenthesubscapularisandteresmajor,thereisalongtriangularspacewhoselateralsideissurgicalneckofhumerus.Thelongheadoftricepsbrachiisub

6、dividesthisspaceintoamedialtrilateralforamenandalateralquadrilateralforamen.Antereriorgroup(9)Superficiallayer(5)Brachioradialis肱桡肌Pronatorteres旋前圆肌Flexorcarpiradialis桡侧腕屈肌Palmarislongus掌长肌Flexorcarpiulnaris尺侧腕屈肌Musclesofforearmbrachioradialispronatorteresflexorcarpiradialispalmarislongusflexor

7、carpiulnarisPronatorteres旋前圆肌Origin:medicalepicondyleofhumerusanddeepfasciaofforearmInsertion:middleoflateralsurfaceofradiusAction:pronationofforearmandflexionofelbowNervesupply:mediann.Secondlayer(1)Flexordigitorumsuperficialis指浅