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25 Cards in this Set
- Front
- Back
What occurs if you have a radial nerve injury?
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wrist drop
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where does the radial nerve injury need to happen for wrist drop to occur?
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forearm, shaft of humerus
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which muscles are paralysed for wrist drop to happen?
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extensor and supinator muscles
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where can you have sensory loss when you have radial n.injury?
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dorsolateral aspect of forearm
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What occurs when you have a median nerve injury?
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ape hand, papal benediction
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which muscles are paralyzed when someone has ape hand (except what muscle) ?
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thenar muscle, adductor muscle
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What does an atrophy nerve mean?
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It's been cut and shrinks
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What does it mean if you can't flex your index and middle finger?
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papal benediction
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if the median nerve is cut at the wrist/ forearm, what happens?
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apa hand/ apa hand + papal benediction, respectively
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when you have an ulnar nerve injury at the elbow, which muscle is paralyzed?
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flexor carpi ulnaris
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ulnar nerve injury at the wrist causes what?
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claw hand
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What fingers can you not flex if you have claw hand?
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ring and little finger
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which muscles are damaged when the ulnar nerve is that allows adduction/abduction?
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interossei muscles
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What can occur when you have damage of the axillary nerve?
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shoulder dislocation
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What are the nerve roots of the upper brachial plexus?
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C5-C6
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What could cause damage to the upper brachial plexus?
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falling on your shoulder, Erb-Duchenne paralysis (traction of the arm at birth)
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What are the signs of upper brachial plexus lesion?
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No arm abduction, medial rotation of the arm, no elbow flexion
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which muscles are damaged in the upper brachial plexus to cause those (3) signs?
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deltoid & supraspinatus, infraspinatus, bicep and brachialis
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What are the roots of the lower brachial plexus lesion that are affected?
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C8-T1
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What are the causes of the lower brachial plexus lesion?
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upward pull of the shoulder, forced abduction of the shoulder at birth (Klumpke's paralysis)
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What are the signs or symptoms of lower brachial plexus lesion?
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paralysis of the intrinsic hand muscles, atrophic paralysis of the forearm, sympathetic palsy (Honers syndrome)
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What is dupuytrens contracture?
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thickening and shortening of palmar aponeurosis leads to partial flexing of the ring and small finger
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What happens to the finger joints when you have claw hand?
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hyperextended at the metacarpophalanegal joints and flexed at the interphalangeal joints
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What are the signs of a musculocutaneous nerve damage?
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knife wounds at the axilla; flexion and supination at the elbow joint is affected, loses senses at the lateral side of the forearm
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list the parts of the humerus and what nerve is damaged?
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surgical neck- axillary n.
shaft- radial n. distal shaft- median n. medial epicondyle- ulnar n. |