brachial plexus 12/30 Flashcards
1
Q
what comes off superior trunk?
A
nerve to subclavius, suprascapular to supraspinatus and infraspinatus
2
Q
what does axillary nerve innervate?
A
deltoid, teres minor
3
Q
what does lower subscapular nerve innervate?
A
subscapularis, teres major
4
Q
what does radial nerve innervate?
A
triceps, brachioradialis, supinator, anconeus, wrist extensors
5
Q
what does median nerve innervate?
A
- pronator teres, FCR, FDS, palmaris longus
- AIN- FDP (lateral half), FPL, pronator quadratus
- hand - LOAF lumbricals 1-2, opponens pollicis, abductor pollicis brevis, flexor pollicis brevis
- anastomoses with ulnar n
6
Q
what does ulnar nerve innervate?
A
- FCU
- FDP (medial half)
- intrinsic hand muscles- palmaris brevis, interosseous muscles, adductor pollicis, flexor pollicis brevis deep head, lumbricals 3-4
- hypothenar - abductor digiti minimi, opponens digiti minimi, flexor digiti minimi
