-1-臂丛 Nerves of the upper limb: Brachial plexus -2--3--4--5- 根(root) : C5 ~ T1. 分支( branches ) 1.Nerve to serratus anterior (long thoracic N.) 胸长神经 C5,6,7 2. Nerve to rhomboideus (dorsal scapular N.) 肩胛背神经 C5 -6-翼状肩 winging of the scapular 胸长神经受损原因: Sudden pressure on the shoulder from above; carrying heavy loads on the shoulder 前锯肌-7- 肩胛背神经-8-分支( branches ):仅从上干发出分支 1. Suprascapular nerve 肩胛上神经 C5,6 2. Nerve to subclavius 至锁骨下肌的神经 C5,6 干: Upper trunk 上干 middle trunk 中干 lower trunk 下干-9- 肩胛上神经-10- 股: anterior and posterior divisions 前股和后股(此处无分支) 索: lateral, posterior and medial cords 前索、后索、外侧索
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