Upper Extremity - Innervation Flashcards
What innervates the latissimus dorsi?
Thoracodorsal (C6 - C8)
What innervates the trapezius?
Spinal accessory nerve; C3 and C4 nerves (proprioceptive)
What innervates the deltoid?
Axillary nerve (C5 - C6)
What innervates the supraspinatus?
Suprascapular nerve (C5 - C6)
What innervates the infraspinatus?
Suprascapular nerve (C5 - C6)
What innervates the teres major?
Lower subscapular nerve (C6 - C7)
What innervates the teres minor?
Axillary nerve (C5 - C6)
What innervates the subscapularis?
Lower and upper subscapular nerves (C5 - C6)
What innervates the pectoralis major?
Lateral and medial pectoral nerves (C5 - C8 and T1)
What innervates the biceps brachii?
Musculocutaneous nerve (C5 - C6)
What innervates the coracobrachialis?
Musculocutaneous nerve (C6 - C7)
What innervates the brachialis?
Musculocutaneous nerve (C5 - C6) and branch of radial nerve (C7)
What innervates the triceps brachii?
Radial nerve (C7 - C8)
What innervates the anconeus?
Radial nerve (C7 - C8)
What innervates the pronator teres?
Median nerve (C6 - C7)
What innervates the pronator quadratus?
Median nerve (C8 and T1)
What innervates the flexor carpi radialis?
Median nerve (C6 - C7)
What innervates the palmaris longus?
Median nerve (C6 - C7)
What innervates the flexor carpi ulnaris?
Ulnar nerve (C7 - C8)
What innervates the flexor digitorum superficialis?
Median nerve (C7 - C8 and T1)
What innervates the flexor digitorum profundus?
Radial: Median nerve (C8 - T1)
Ulnar: Ulnar nerve (C8 - T1)
What innervates the flexor pollicis longus?
Median nerve (C7 - T1)
What innervates the supinator?
Deep branch of the radial nerve (C5 - C6)
What innervates the brachioradialis?
Radial nerve (C5 - C6)
What innervates the extensor carpi radialis longus?
Radial nerve (C6 - C7)
What innervates the extensor carpi radialis brevis?
Deep branch of radial nerve (C7 - C8)
What innervates the extensor digitorum?
Posterior interosseus branch of the radial nerve (C7 - C8)
What innervates the extensor digit minimi?
Posterior interosseus branch of the radial nerve (C7 - C8)
What innervates the extensor carpi ulnaris?
Posterior interosseus branch of the radial nerve (C7 - C8)
What innervates the abductor pollicis longus?
Posterior interosseus branch of the radial nerve (C7 - C8)
What innervates the extensor pollicis brevis?
Posterior interosseus branch of the radial nerve (C7 - C8)
What innervates the extensor pollicis longus?
Posterior interosseus branch of the radial nerve (C7 - C8)
What innervates the extensor indicis?
Posterior interosseus branch of the radial nerve (C7 - C8)
What innervates the abductor pollicis brevis?
Recurrent branch of the median nerve (C8 - T1)
What innervates the flexor pollicis brevis?
Recurrent branch of the median nerve (C8 - T1)
What innervates the opponens pollicis?
Recurrent branch of the median nerve (C8 - T1)
What innervates the adductor pollicis?
Deep branch of the ulnar nerve (C8 - T1)
What innervates the abductor digiti minimi?
Deep branch of the ulnar nerve (C8 - T1)
What innervates the flexor digiti minimi?
Deep branch of the ulnar nerve (C8 - T1)
What innervates the opponens digiti minimi?
Deep branch of the ulnar nerve (C8 - T1)
What innervates the lumbrical muscles?
Lumbricals 1 & 2: Median nerve (C8 - T1)
Lumbricals 3 & 4: Deep branch of the ulnar nerve (C8 - T1)
What innervates the palmar interossei muscles?
Deep branch of the ulnar nerve (C8 - T1)
What innervates the dorsal interossei muscles?
Deep branch of the ulnar nerve (C8 - T1)