In brachial plexus nerve arising from root is
Nerve to serratus anterior or long thoracic nerve arises from the nerve root of C5-C7. Injury to this nerve causes the condition called winging of scapula due to paralysis of serratus anterior muscle. B D Chaurasia 7th edition Page no: 45
Nerve to serratus anterior
Axillary nerve
Ulnar nerve
Suprascapular nerve
Upper limb