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解剖30具尸体(男28.女2)时.见有8侧(左3,右5)肩胛上神经穿肩胛上横韧带时发出肩峰下滑液囊支的终支形成肩胛上神经皮支.肩峰下滑液囊支的终支在肩胛上横韧带处起自肩胛上神经,紧贴喙突根部向外上,在此处发出关节支和滑液囊支分布肩关节前、上部和肩峰下滑液囊.肩峰下滑液囊支的主干绕过喙锁韧带外侧向前、在三角肌的掩覆下,走行在喙肩韧带的上面,再紧贴锁骨前缘走向外侧,到肩峰的下方,向下斜穿入三角肌,约在肩峰下4cm处自肌纤维间浅出下行,形成肩胛上神经皮支.此皮支在线筋膜内分成数支分布上臂上1/3的前外侧皮肤,相当三角肌前半范围的区域内.其中一具尸体两侧对称向下可达三角肌止点的范围.它的分布区域应属腋神经的分支——臂外侧上皮神经的分布范围,此皮肤区原为肩胛上神经所分布,而后为腋神经替代,即肩胛上神经的这一部分感觉成分含在腋神经内,于是可以解释出现肩胛上神经皮支乃是一种退行性变异.由于此神经行经肩胛上横韧带与肩胛上切迹围成的骨性纤维孔,贴绕骨面行走,迂回曲折,行程固定.和肩关节及肩峰下滑液囊又有密切关系.此神经的病变可诱发某些肩部的病痛.
Anatomy of 30 bodies (male 28. Female 2) when seen on the 8 side (left 3, right 5) suprascapular nerve through the suprascapular transverse ligament issued shoulder acromial sac sacral branch of the formation of the suprascapular superior cutaneous nerve sheath. Shoulder gliding sac sacral branch in the suprascapular superior transverse ligament at the suprascapular nerve, close to the beak root outwards, where the issue of joint branch and synovial sac distribution shoulder anterior, upper and shoulder Down the sac.Acrosis of the acromioclavicular sac branch around the outside of the coracoclavicular ligament forward, cover in the deltoid muscle, walking in the coracoacromial ligament above, and then close to the anterior clavicle to the outside, to the acromion Below, oblique down into the deltoid muscle, about 4cm at the acromiocervical shallow shallow descending, forming the suprascapular nerve sheath branch.The fascia within the fascia is divided into several branches on the upper arm 1/3 of the anterolateral Skin, and quite the area of the anterior half of the deltoid.One of the bodies is symmetrical downwards on both sides of the deltoid muscle, and its distribution area should belong to the branch of the axillary nerve - the distribution of the lateral nerve of the arm, which Skin area was originally distributed on the suprascapular nerve, and then replaced by the axillary nerve, supraspinal nerve that part of this feeling Contained in the axillary nerve, and thus can explain the suprascapular nerve sheath is a degenerative change.Because this nerve line through the suprascapular transverse and suprascapular incision surrounded by bony fiber holes, around the bone surface walking, Twists and turns, a fixed stroke and shoulder and shoulder fluid capsule is also closely related to this nerve lesions can induce some shoulder pain.