在４０侧经红色乳胶灌注的成人上肢标本上，观测了肱二头肌短头腱的起点、喙突及其邻近结构。喙突距锁骨下缘为２．８ｃｍ，６２．５％位于胸大肌外地缘的外侧１．２ｃｍ处，其前半内侧为胸小肌附着，中间部为喙肱肌的起点，而外侧部为肱二头肌短头腱或与喙肱肌腱一起（占７７．５％）附着。喙突区与头静脉弓、胸肩峰动脉三角肌支等关系密切。对肩锁关节复位术式进行了评价。讨论了其优缺点及术中应注意的事项。 On the 40 sides of adult upper limbs infused with red latex, the starting point of the short biceps tendon, the coracoid process, and its adjacent structures were observed. Beak from the lower edge of the clavicle is 2.8cm, 62.5% at the outer edge of the pectoralis major 1.2cm, the first half of the medial pectoralis minor attachment, the middle part of the starting point of the beak brachii muscle, while the lateral part of the Biceps brachial short tendons or with the beak-brachial tendon (77.5%) attached. Beaked with the head vein and the arch, the thoracic and arrhythmic deltoid branch of the close relationship. Acromioclavicular joint reduction surgery was evaluated. Discussed its advantages and disadvantages and should pay attention to the matters during surgery.