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1、Theupperlimb山东大学医学院解剖教研室李振华ThemusclesofbackSuperficialgroupTrapezius斜方肌Latissimusdorsi背阔肌Levatorscapulae肩胛提肌Rhomboideus菱形肌DeepgroupErectorspinae竖脊肌Splenius夹肌Thoracolumbarfascia胸腰筋膜ThemusclesofthoraxExtrinsicmusclesPectoralismajor胸大肌Pectoralisminor胸小肌Serrat
2、usanterior前锯肌IntrinsicmusclesIntercostalesexterni肋间外肌Intercostalesinterni肋间内肌Intercostalesintimi肋间最内肌MajormusclesofthetrunkTrapeziusOrigin:superiornuchalline,externaloccipitalprotuberance,ligamentumnuchaeandspinousprocessesofseventhcervicalandallthoracicve
3、rtebraeInsertion:lateralthirdofclavicle,acromion,andspineofscapularteryActon:upperfiberselevatescapula,lowerfibersdepressscapula;ifscapulaisfixed,onesideactingalong,drawsheadtowardthesameside,andturnfacetooppositeside;bothsidestogether,drawheaddirectlyback
4、wardLatissimusdorsiOrigin:spinousprocessesoflowersixthoracicandalllumbarvertebrae,mediansacralcrest,andposteriorpartofiliaccrest.Insertion:floorofintertuberculargrooveofhumerus.Action:trunkfixed,extends,adductsandmediallyrotatesarm;armfixed,elevatestrunk.E
5、rectorspinaePosition:fillsthevertebralgrooveoneachsideofthespineAction:extendsvertebralcolumn(drawheadbackwar)PectoralismajorOrigin:medialhalfofclavicle,sternum,1th-6thcostalcartilages.Insertion:crestofgreatertubercleofhumerus.Action:flexes,adductsandrotat
6、esarmmedially;armfixed,elevatestrunk;elevatesribs1-6,aiddinginforcedinspiration.TheMusclesofUpperLimbMusclesofshoulderDeltoidsupraspinatusInfraspinatusTeresminorTeresmajorsubscapularisMusclesofarmAntereriorgroupBicepsbrachii肱二头肌Coracobrachialis喙肱肌Brachiali
7、s肱肌Posteriorgroup–tricepsbrachii肱三头肌MusclesofforearmSuperficiallayerBrachioradialis肱桡肌Pronatorteres旋前圆肌Flexorcarpiradialis桡侧腕屈肌Palmarislongus掌长肌Flexorcarpiulnaris尺侧腕屈肌ThirdlayerFlexordigitorumprofundus指深屈肌Flexorpollicislongus拇长屈肌Fourthlayer－pronatorquadrat
8、us旋前方肌Action:flexradiocarpaljointandfingers,pronateforearmSecondlayer－flexordigitorumsuperficials指浅屈肌Posteriorgroup(10)Superficiallayer(5)Extensorcarpiradialislongus桡侧腕长伸肌Extensorcarpiradialisbrevis桡侧腕短伸肌Exte
