Muscle Innervation- Brachial PlexusOnline version Anatomy by Kelli Stanley 1 Dorsal scapular nerve 2 Suprascapular nerve 3 Lower scapular nerve 4 Medial pectoral nerve 5 Medial cutaneous nerve 6 Musculocutaneous nerve 7 Axillary nerve 8 C3-C4 of cervical plexus Levator scapulae Rhomboid major Rhomboid minor Infraspinatus Supraspinatus Subscapularis Teres major Pectoralis minor Pec major Sensory to arm Sensory to forearm Brachialis Coracobrachialis Biceps brachii Deltoid Teres minor Trapezius. Levator scap