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Chapter3Myology肌学Composition Musclebelly肌腹 Tendon肌腱 aponeurosis腱膜 ⅡOrigin,insertionandactionofskeletalmusclesTendinoussheath腱鞘 Fibrouslayer Synoviallayer:Epicranius颅顶肌(occipitofrontalis)枕额肌 Frontalbelly额腹 Occipitalbelly枕腹 Galeaaponeurotica帽状腱膜 ⅡMasticatorymuscles咀嚼肌咀嚼肌Section3MusclesofneckⅡSuprahyoidmuscles Digastric二腹肌 Stylohyoid茎突舌骨肌 Mylohyoid下颌舌骨肌 Geniohyoid颏舌骨肌 Elevate(raise)hyoidboneanddepressmandible. ⅢInfrahyoidmuscles Sternohyoid胸骨舌骨肌 Omohyoid肩胛舌骨肌 Sternothyroid胸骨甲状肌 Thyrohyoid甲状舌骨肌 DepresshyoidorlarynxafterelevationⅣDeepcervicalmuscles Section4MusclesoftrunkTrapezius斜方肌Latissimusdorsi背阔肌ErectorspinaeⅡMusclesofthoraxPectoralismajor胸大肌Pectoralisminor胸小肌Ⅱ)ThoracicointrinsicmusclesⅢDiaphragm膈Openingsinthediaphragm Aortichiatus主动脉裂孔-liesanteriortothebodyofthe12ththoracicvertebrabetweenthecrura.Ittransmitstheaorta,thoracicduct Esophagealhiatus食管裂孔-foresophagusandvagusnervesatlevelofT10. Venacavaforamen腔静脉孔-forinferiorvenacava,throughcentraltendonatT8levelActionⅣMusclesofabdomenObliquusinternusabdominis腹内斜肌Transversusabdominis腹横肌Rectusabdominis腹直肌Sheathofrectusabdominis腹直肌鞘Lineaalba白线2.PosteriorgroupInguinalcanal腹股沟管TheSceneryofJiuzhaiValleyinSichuan