name the spinal roots of the root division of the brachial plexus and the nerves that come off the roots and what they innervate
C5-T1. nerves that come off are the dorsal scapular and long thoracic nerve. long thoracic innervates serratus anterior. dorsal scapular nerve innervates the rhomboids and levator scapula
describe the location of dermatomes C5 through C8
C4: shoulder C5: upper arm C6: forarm, thumb, part of pointer finger C7: middle finger C8: pinky
what compartments of the arm does the musculocutaneous nerve innervate?
anterior compartment: corachobrachialis, short head of biceps brachii, long head of biceps brachii, brachialis. it carries sensorhy information from the lateral forarm.
what compartment and muscles are innervated by the radial nerve?
it innervates all the muscles of the posterior compartment of the arm and forarm: long head of triceps brachii, lateral head of triceps brachii, medial head of triceps brachii, anconeus. forarm muscles innervated also.
the axillary nerve carries sensory information from what part of the arm
lateral shoulder
the hand of benediction is caused by damage to what nerve
median nerve dysfunction.
what does the ulnar nerve innervate
nearly all the muscles o the hand: abductor digiti minimi, opponens digiti inimi, flexor digiti minimi, adductor pollicis, third and fourth lumbricals, palmer interossei, dorsal interossei
