Brachial nerve innervations Flashcards
Musculocutaneous sensory
Lateral forearm
Musculocutaneous motor
Biceps brachii, brachialis, coracobrachialis
Median sensory
Lateral palm of the hand and dorsal tips of fingers
Median motor
Flexors of the forearm (excpet FCU and medial 1/2 of FDP), thenar muscles, two lateral lumbricals
Ulnar sensory
Ulnar side of the hand
Ulnar motor
FCU and and medial 1/2 od FDP, all muscles of the hand except thenar muscles and 2 lateral lumbricals
Axillary sensory
Deltoid region
Axillary motor
Deltoid, teres minor
Radial sensory
Posterior aspect of the arm and forearm and 1st dorsal interosseous web
Radial motor
Triceps brachii, extensors of the forearm
Musculocutanous palsy
Uncommen, paralysis of BBC
Median palsy
Supracondylar fracture = hand of benediction
Carpal tunnel = thenar atrophy
Ulnar palsy
Medial epicondyle fracture = claw hand
Axillary palsy
Dislocated shoulder, surgical neck fracture = paralysis and atrophy of deltoid
Radial palsy
Midshaft fracture = wrist drop and weakened elbow extension