肌学课件：颈肌

Myology

第三章肌学第三节颈肌

TheMuscleoftheNeck颈浅肌和颈外侧肌

颈阔肌theplatysma

胸锁乳突肌

thesternocleidomastoidmuscle颈前肌

舌骨上肌群thesuprahyoidmuscles

舌骨下肌群theinfrahyoidmuscles颈深肌TheDeepCervicalMuscles

斜角肌thescalenusmuscles

头长肌和颈长肌（椎前肌）1.颈阔肌颈阔肌也属于面表情肌Theplatysmaisalsoamuscleoffacialexpression..platysma颈阔肌的作用Action:Tensesskinofneck（紧张颈部皮肤）,drawscornersofmouthdown（牵拉口角向下）,andassistsindepressingmandible（辅助下降下颌骨）.SternocleidomastoidM.2.胸锁乳突肌乳突锁骨胸骨•••胸锁乳突肌的作用作用Action：一侧收缩使向同侧倾斜，面转向对侧；两侧收缩头后仰Actingalone,theheadisinclinedlaterallyandthefaceisrotatedtotheoppositeside.Actingtogether,theyextendtheneck.Thesurfacelandmark体表标志表面标志

ThesurfacelandmarkLessersupraclavicular

fossa(Greater)supraclavicular

fossaSuprasternal

fossa3.舌骨肌群二腹肌(前腹)二腹肌(后腹)下颌舌骨肌茎突舌骨肌颏舌骨肌胸骨舌骨肌肩胛舌骨肌(下腹)胸骨甲状肌甲状舌骨肌肩胛舌骨肌(上腹)

3.舌骨上肌群Anteriorbellyofdigastricm.Mylohyoidm.Stylohyoidm.Posteriorbellyofdigastricm.二腹肌(前腹)二腹肌(后腹)下颌舌骨肌茎突舌骨肌3.舌骨上肌群二腹肌(前腹)二腹肌(后腹)下颌舌骨肌茎突舌骨肌3.舌骨上肌群下颌舌骨肌颏舌骨肌舌骨体舌骨上肌群的作用作用：在吞咽或说话时，牵拉舌骨向上、向后、向前；当舌骨固定时，辅助降下颌。

Action:pullthehyoidupward,backwardandforwardinswallowingandspeaking,helptodepressthemandiblewhilethehyoidisfixed.

4.舌骨下肌群Superiorbellyofomohyoidm.Thyrohyoidm.Sternothyroidm.Inferiorbellyofomohyoidm.Sternohyoidm.胸骨舌骨肌肩胛舌骨肌上腹胸骨甲状肌甲状舌骨肌肩胛舌骨肌下腹ScalenusanteriorScalenus

mediusScalenusposterior5.斜角肌斜角肌间隙前斜角肌后斜角肌中斜角肌第1肋1stribBrachialplexuesSubclavi