30 Questions
Which connective tissue sheath surrounds multiple fascicles?
Epineurium
Which type of nerve injury can cause numbness, paresthesia, pain, and sometimes muscle weakness if it lasts longer than 2 hours?
Compression
What can happen to a nerve when it is torn or cut?
All of the above
Which factor can shut off the electrical impulse of a nerve when experienced for prolonged periods?
Vibration
What are some sites of vulnerability for nerve injury?
All of the above
At what elongation of a nerve does cessation of blood flow occur during a stretching injury?
15%
Which level of nerve injury involves loss of axon continuity with preservation of endoneurium and fascicular structure?
Grade II - Axonotmesis
Which nerve is responsible for innervating the triceps and the brachioradialis?
Radial nerve
What is the clinical finding associated with scapular fracture or forceful protraction?
All of the above
What is the treatment option for scapular fracture or forceful protraction?
All of the above
What is the cause of radial tunnel syndrome?
Lateral epicondylitis
What are the clinical findings of posterior interosseous syndrome?
All of the above
What is the cause of carpal tunnel syndrome?
Compression of the median nerve by pronator teres
What are the risk factors for carpal tunnel syndrome?
All of the above
Which grade of Wallerian degeneration is characterized by loss of axons and endoneurium with retained fascicles and perineurium?
Grade III
Which trunk of the brachial plexus consists of C5 and C6 nerve roots?
Upper Trunk
What can cause impingement of the brachial plexus cords in thoracic outlet syndrome?
All of the above
Which test is used to evaluate thoracic outlet syndrome by having the patient raise their arm above 90 degrees of abduction with elbow flexed and observing for symptoms?
Roo's test
What is the treatment for thoracic outlet syndrome that involves manual therapy to mobilize the first rib and scapula?
Joint mobilization
Which nerve innervates the supraspinatus and infraspinatus muscles and can be compressed in the suprascapular foramen area?
Suprascapular nerve
What can cause compression of the suprascapular nerve in the foramen area?
All of the above
Which nerve follows along the medial head of the triceps and enters the hand through the canal of Guyon?
Ulnar nerve
Where is the Guyon canal located?
At the wrist
What is the most common cause of Tardy Ulnar Palsy?
Valgus deformity
Which finger is most affected by ulnar nerve injury within the Guyon canal?
Ring finger
What is the treatment for peripheral nerve injury?
Desensitization
What is the main symptom of ulnar nerve injury at the elbow close to the medial epicondyle?
Clawing of the 5th finger
What can cause entrapment in the Cubital Tunnel?
Direct pressure
What is the most common cause of ulnar tunnel syndrome (Guyon Canal Syndrome)?
Direct pressure on the tunnel
What is the effect of ulnar nerve injury on the hypothenar eminence?
Atrophy
Test your knowledge on OH athlete injuries with this quiz! Learn about the connection between repetitive protraction and retraction trauma and scapular fractures, as well as the potential for nerve tearing. Identify clinical findings such as deep shoulder pain and weakness in specific muscles. Challenge yourself with questions related to impingement, UE tests, and more.
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