function of the coracobrachialis Flashcards
function of the coracobrachialis?
flexes and adducts
function of the biceps brachii>
flexes
function of the brachialis
flexes
function of the triceps?
extension
which muscles abduct the shoulder?
trapezius, supraspinatus, deltoids, serratus anterior
which muscles adduct the shoulder?
lattisimus, pec major, teres, major, corocbrachialis, triceps brachii
what structures are within the medial cubital fossa?
brachial artery, brachial vein, median nerve
if a patient experiences parasesthesia in the medial hand what nerve is compressed and where?
ulnar nerve and either elbow or wrist
what nerve lesion is responsible for ape hand deformity? where?
median nerve lesion at elbow or wrist
what nerve lesion is responsible for clawing of 4,5? where?
ulnar nerve, at elbow clawing is less severe, at wrist clawing is more severe
what muscles are involved in the ulnar paradox?
no innervation to lumbricals will cause inability to extend the metacarpal and flex to interphalangeal jont. When flexor digitorum is also affected (fingers will be more extended)
function of the lumbricals?
flexion at metacarpal joint, extension at interphalangeal joint
function of the flexor digitorum?
flexon of the fingers/
what nerve would cause a loss of thumb flexion?
median nerve