答：（1）听诊三角（triangle of auscultation）:下界为背阔肌上缘，内下界为斜方 肌的外下缘，外界为肩胛骨的脊柱缘。是背部听诊呼吸音最清楚的部位。
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探讨听诊三角保留肌肉 Muscle-Sparing
左听诊三角 Left triangle of auscultation
听诊三角开胸手术切口 auscultatory triangle thoracotomy
目的推荐一种经听诊三角的肌肉非损伤性开胸术。
Objective To recommend the technique of muscle-sparing thoracotomy through the auscultatory triangle.
目的评估左听诊三角切口（ATT）与后外侧切口（PLT）下动脉导管未闭（PDA）缝扎术的疗效。
Objective To compare the curative effect of PDA surgical ligation between left Ausculatry triangle thoracotomy(ATT) and Posterolateral incision(PLT).
斜方肌的外下缘，肩胛骨脊柱缘，背阔肌上缘之间围成的一个三角形区域，临床称听诊三角,又称肩胛旁三角。三角的底为脂肪组织、深筋膜和第6肋间隙，表面覆以皮肤和浅筋膜，是背部听诊呼吸音最清楚的部位。当肩胛骨向前、外移位时，该三角范围会扩大。 The triangle of auscultation is a triangle located below the inferior angle of the scapula, bounded by the trapezius medially, rhomboideus major superiorly and the latissimus dorsi inferiorly. This is a place where you can place your stethoscope and auscultate the lungs.
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