he四肢肌(双语本科).06ppt

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1、贺细菊DepartmentofAnatomyThemusclesoflimbs四肢肌1.掌握三角肌的起止作用2.掌握臂肌的分群、分层及作用3.掌握前臂肌的名称5.掌握臀大肌、髂腰肌和梨状肌的起止作用6.掌握大腿肌分群、分层和各群肌的功能7.掌握小腿三群肌名称和小腿三头肌起止作用目的与要求themusclesofshoulder上肢带肌themusclesofarm臂肌themusclesofforearm前臂肌themusclesofhand手肌section5ThemusclesofupperlimbAccordingtotheirlocatio

2、ns,themusclesofupperlimbaredivisibleinto:1.ThemusclesofShoulderTheysurround,protectandacttheshoulderjoint.Theyarisefromtheshouldergirdleandareinsertedintothehumerus.Therearesixmuscles.Deltoid三角肌Supraspinatus冈上肌Infraspinatus冈下肌Teresminor小圆肌Teresmajor大圆肌Subscapularis肩胛下肌Thisthic

3、k,powerful,triangularmusclecoverstheshoulderjointandformstheroundedcontouroftheshoulder.Origin:lateralthirdofclavicle,acromion,andspineofscapulaInsertion:deltoidtuberosityofhumerusAction:abductsthearmDeltoid三角肌预防针注射部位肱骨外科颈骨折时，腋神经受损会引起三角肌瘫痪，形成“方肩”畸形Muscletendinousstuff肌腱袖Subsca

4、pularis肩胛下肌Supraspinatus冈上肌Infraspinatus冈下肌Teresminor小圆肌Theshoulderstuffprotectstheshoulderjointandgivesitstability.Thetendonsoffourmuscles,viz.Theyaredividedintotwogroups,theanterior(flexor)groupandtheposterior(extensor)groupTheanteriorgroup2.ThemusclesofarmBicepsbrachii肱二头肌O

5、rigin:longhead,supraglenoidtubercle;shorthead,coracoidprocessInsertion:radialtuberosityAction:flexorofelbowjointCoracobrachialis喙肱肌Action:FlexesandadductsthearmattheshoulderjointBrachialis肱肌Action:flexorofelbowjointTheposteriorgroupTricepsbrachii肱三头肌Origin:longhead,infraglenoi

6、dtubercle;lateralhead,abovegrooveforradialn;medialhead,belowgrooveforradialn.Insertion:olecranonofulnaAction:extendselbowjointTrilateralandquadrilateralforamen三边孔和四边孔Trilateralforamen三边孔:旋肩胛AQuadrilateralforamen四边孔:旋肱后A、腋NBrachioradialis肱桡肌Pronatorteres旋前圆肌Flexorcarpiradialis桡

7、侧腕屈肌Palmarislongus掌长肌Flexorcarpiulnaris尺侧腕屈肌3.ThemusclesofforearmAnteriorgroup(9)TheSuperficiallayer(5):Fromtheradialsidetotheulnaside从桡侧到尺侧Thesecondlayer(1):指浅屈肌（止于中节指骨体两侧）Thethirdlayer(2):拇长屈肌指深屈肌（止于远节指骨底）Thefourthlayer(1):Pronatorquadratus旋前方肌TheSuperficiallayer(5):Fromther

8、adialsidetotheulnaside从桡侧到尺侧Extensorcarpiradialislongus桡侧腕长伸肌