function of the coracobrachialis Flashcards

1
Q

function of the coracobrachialis?

A

flexes and adducts

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2
Q

function of the biceps brachii>

A

flexes

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3
Q

function of the brachialis

A

flexes

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4
Q

function of the triceps?

A

extension

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5
Q

which muscles abduct the shoulder?

A

trapezius, supraspinatus, deltoids, serratus anterior

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6
Q

which muscles adduct the shoulder?

A

lattisimus, pec major, teres, major, corocbrachialis, triceps brachii

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7
Q

what structures are within the medial cubital fossa?

A

brachial artery, brachial vein, median nerve

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8
Q

if a patient experiences parasesthesia in the medial hand what nerve is compressed and where?

A

ulnar nerve and either elbow or wrist

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9
Q

what nerve lesion is responsible for ape hand deformity? where?

A

median nerve lesion at elbow or wrist

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10
Q

what nerve lesion is responsible for clawing of 4,5? where?

A

ulnar nerve, at elbow clawing is less severe, at wrist clawing is more severe

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11
Q

what muscles are involved in the ulnar paradox?

A

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)

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12
Q

function of the lumbricals?

A

flexion at metacarpal joint, extension at interphalangeal joint

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13
Q

function of the flexor digitorum?

A

flexon of the fingers/

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14
Q

what nerve would cause a loss of thumb flexion?

A

median nerve

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