Hand Injuries Quiz

What percentage of trauma cases in the emergency department are hand injuries?

• 20%

• 15%

• 10%

• 5%

Which muscle mass is located at the base of the thumb?

• Flexor carpi radialis

• Palmaris longus

• Thenar eminence

• Hypothenar eminence

What is the primary function of the flexor tendons in the hand?

• To extend the fingers

• To abduct the thumb

• To flex the wrist and fingers

• To adduct the little finger

Which of the following is a common site of tendon injury?

• Base of the thumb

• Palm of the hand

• Volar aspect of the wrist

• Dorsum of the hand

What is the most sensitive test for sensory function in the hand?

• Vibration test

• Pinprick test

• Temperature test

• Two-point discrimination

Which nerve is primarily tested by assessing the ability to flex the DIP joint of the little finger?

• Musculocutaneous nerve

• Radial nerve

• Ulnar nerve

• Median nerve

What is a common mechanism of injury for a jersey finger?

• Direct impact to the palm

• Chronic overuse

• Forceful extension of a flexed DIP joint

• Laceration from a sharp object

Which zone of flexor tendon injuries is referred to as 'no man's land'?

• Zone I

• Zone II

• Zone III

• Zone IV

What is the primary treatment for a mallet finger?

• Dorsal splinting

• Physical therapy

• Ice application

• Surgical repair

Which of the following is NOT a component of the nail complex?

• Cuticle

• Hyponychium

• Eponychium

• Nail bed