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 1.舌骨hyoidbone2.喉结laryngealprominence3.气管trachea4.食管esophagus5.第二狭窄(主动脉弓后部)2ndconstriction6.左主支气管leftprincipalbronchus7.左肺上叶支气管leftsuperiorlobarbronchus8.左肺下叶支气管leftinferiorlobarbronchus9.膈diaphragm10.第四狭窄(膈肌食管裂 (共 446 字) [阅读本文] >>