《肢前面的深层》PPT课件

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1、四肢前面深层解剖廖华南方医科大学解剖教研室2016.09上肢的深部解剖胸肌ExtrinsicmusclesPectoralismajor胸大肌Pectoralisminor胸小肌Serratusanterior前锯肌IntrinsicmusclesIntercostalesexterni肋间外肌Intercostalesinterni肋间内肌Intercostalesintimi肋间最内肌胸大肌Origin:medialhalfofclavicle,sternum,1th-6thcostalcartilages.Insertio

2、n:crestofgreatertubercleofhumerus.Action:flexes,adductsandrotatesarmmedially;armfixed,elevatestrunk;elevatesribs1-6,aiddinginforcedinspiration.上肢肌Musclesofshoulder肩肌DeltoidsupraspinatusInfraspinatusTeresminorTeresmajorsubscapularisMusclesofarm臂肌AntereriorgroupBicepsb

3、rachii肱二头肌Coracobrachialis喙肱肌Brachialis肱肌Posteriorgroup–tricepsbrachii肱三头肌前臂肌Superficiallayer（第一层）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Secondlayer（第二层）－flexordigitorumsuperficials指浅屈肌Thirdlayer（第三层）Flexord

4、igitorumprofundus指深屈肌Flexorpollicislongus拇长屈肌Fourthlayer（第四层）－pronatorquadratus旋前方肌Action:flexradiocarpaljointandfingers,pronateforearm腋窝周界及内容周界:顶底四壁Axillaryfossa腋窝Theaxillaryfossaisapyramid-shapedspacethroughwhichmajorneurovascularstructurespassbetweenthethoraxandup

5、perextremityBoundaries边界Theapexisatriangularspacelimitedbythefirstrib,thescapula,andthemiddlethirdofclavicle.Thebase－skinandfasciaoftheaxillaryfossa观察锁胸筋膜（锁骨下肌、胸小肌及喙突之间）及穿行的结构（头V，胸肩峰A和胸外侧N），并修洁之；修洁胸小肌；Theanteriorwall前壁Pectoralismajor,pectoralisminorandsubclaviusmuscl

6、es胸大、小肌，锁骨下肌Clavipectoralfascia锁胸筋膜Thedeepfaxciawhichextendsbetweensubclavius,coracoidprocessandpectoralisminormusclesThestructurespassthroughtheclavipectoralfaxcia穿锁胸筋膜的结构Cephalicv.头静脉Thoracoacromiala.胸肩峰动脉Lateralpectoraln.胸外侧神经Axillarysheath腋鞘－extensionofdeepcervic

7、alfasciaoftheneck,formingatubularsheaththatsurroundsaxillarya.andv.,andbrachialplexus腋动脉axillaryA被胸小肌分为三段。第一段第一肋与胸小肌上缘（发出胸上A）第二段胸小肌后方(发出胸肩峰A、胸外侧A)第三段胸小肌下缘至大圆肌下缘（发出旋肱前、后A、肩胛下A）上肢的动脉Axillaryartery腋动脉ContinuationofsubclavianarteryatlateralborderoffirstribBecomesbrachial

8、arteryatlowerborderofteresmajorDividedintothreepartsbyoverlyingpectoralisminorFirstportion,abovemuscle－givesrisetothoracoacromiala.