brachial plexus

Which roots and cords give rise to the musculocutaneous nerve?

C5, C6, C7, lateral cord

Which roots and cords give rise to the axillary nerve?

C5, C6, posterior cord

Which roots and cords give rise to the radial nerve?

C5-T1, posterior

Which roots and cords give rise to the median nerve?

C6-T1, lateral and medial cord

Which roots and cords give rise to the ulnar nerve?

C8, T1, medial cord

Which muscles are innervated by the musculocutaneous nerve?

coracobrachialis, biceps, brachialis

Which muscles are innervated by the axillary nerve?

teres minor, deltoid

Which muscles are innervated by the radial nerve?

brachioradialis, extensor carpi radialis, anconeus, supinator, triceps

Which muscles are innervated by the median nerve?

lateral two lumbricals, opponens pollicis, abductor pollicis brevis, flexor policis brevis

Which muscles are innervated by the ulnar nerve?

medial two lumbricals, adductor pollicis, flexor carpi ulnaris, flexor digitorum profundus, interossei, abductor digiti minimi

Which areas of skin are innervated by the musculocutaneous nerve?

lateral part of anterior forearm, small lateral part of posterior forearm

Which areas of skin are innervated by the axillary nerve?

skin over lower deltoid

Which areas of skin are innervated by the radial nerve?

posterior aspect of arm and forearm, dorsal surface of lateral three and a half fingers

Which areas of skin are innervated by the median nerve?

lateral part of the palm, lateral three and a half fingers on anterior surface

Which areas of skin are innervated by the ulnar nerve?

medial one and a half fingers, associated palm area