Treatment Options for Brachial Plexus Injuries

Table 2

Donor nerves and number of axons.

Nerves	Number of axons
Branch to pectoralis major muscle	400–600
Phrenic nerve	800
Intercostal nerve	1300
Long thoracic nerve	1600
Spinal accessory nerve	1700
Motor branch of middle trunk	3400–4000
C7 root	16000–40000
Nerve for the long head of brachial biceps	1200