Ulnar nerve
Plexus: Brachial
Cord: Medial
Roots:
C7
C8
T1
Origin: Medial cord of brachial plexus
Motor innervation:
Flexor carpi ulnaris
Roots:
C7
C8
T1
Flexor digitorum profundus III & IV
Roots:
C8
T1
Palmaris brevis
Branch: Superficial branch of ulnar nerve
Roots:
C8
T1
Adductor pollicis
Roots:
C8
T1
Flexor pollicis brevis (deep head)
Roots:
C8
T1
Abductor digiti minimi
Roots:
C8
T1
Opponens digiti minimi
Roots:
C8
T1
Flexor digiti minimi
Roots:
C8
T1
Lumbricales III & IV
Roots:
C8
T1
Palmar interossei
Roots:
C8
T1
Dorsal interossei
Roots:
C8
T1
Sensory innervation:
Hand, dorsal, ulnar aspect
Branch: Dorsal cutaneous branch of ulnar nerve
Roots:
C8
Hand, palmar ulnar aspect
Branch: Palmar cutaneous branch of ulnar nerve
Roots:
C8
Ring and small finger
Branch: Common and proper palmar digital nerves
Roots:
C8
Syndromes:
Lesions above elbow
Cubital tunnel syndrome
Guyon's canal syndrome
Dorsal cutaneous branch
Digital branches
Pseudoulnar palsy