Practice Quiz - Hand

    Below are written questions from previous quizzes and exams. Click here for a Practical Quiz - old format or Practical Quiz - new format.

  1. The extensor expansion of the ring finger receives tendons from all of the following EXCEPT:
    Dorsal interosseus
    Extensor carpi ulnaris
    Extensor digitorum
    Palmar interosseus
  2. A girl playing softball cuts the palm of her hand as she scoops up a piece of glass along with the ball. If the only nerve damaged is the recurrent branch of the median nerve, she would lose what movement of the thumb?
    Flexion of the distal phalanx
  3. The main source of blood to the superficial palmar arterial arch is the:
    Deep branch of the ulnar artery
    Radial artery
    Superficial palmar branch of the radial artery
    Ulnar artery
  4. What sesamoid bone develops in the tendon of flexor carpi ulnaris and is therefore not a part of the wrist joint?
  5. In order to check the pulse of a child whose forearm is in a cast, the pediatrician presses her finger into the depth of the "anatomical snuffbox". The tendon lying immediately medial (ulnar) to the physician's finger belongs to what muscle?
    Extensor carpi radialis brevis
    Extensor carpi radialis longus
    Extensor pollicis brevis
    Extensor pollicis longus
  6. While watching her boyfriend split wood, a teenager was struck on the back of her carpals by a sharp- edged flying wedge. Her extensor digitorum tendons were exposed, though not severed, indicating that the surrounding synovial sheath had been opened. What other muscle has its tendon surrounded by the same synovial sheath?
    Extensor carpi radialis brevis
    Extensor carpi radialis longus
    Extensor digiti minimi
    Extensor indicis
    Extensor pollicis longus
  7. The signs and symptoms of carpal tunnel syndrome may vary among patients, but they always result from compression of what structure in the carpal canal?
    Median nerve
    Radial artery
    Superficial radial nerve
    Ulnar artery
    Ulnar nerve
  8. What muscle tendon is enclosed within its own synovial sheath in the carpal canal?
    Flexor carpi ulnaris
    Flexor digitorum profundus to 2nd digit
    Flexor digitorum superficialis to 2nd digit
    Flexor pollicis longus
    Palmaris longus
  9. The point of insertion of the flexor digitorum superficialis tendon to the index finger is on the:
    Distal phalanx
    Middle phalanx
    Proximal phalanx
    Second metacarpal
    Trapezoid bone
  10. In order to evaluate the carpal-metacarpal joint of the thumb, the median nerve must be deadened at the wrist (causing paralysis of the muscles supplied by it distal to the injection) to test the joint. Which movement of the thumb would be most affected by the anesthetic?
  11. What arterial vessel accompanies the deep branch of the ulnar nerve across the palm?
    Deep palmar arterial arch
    Radialis indicis
    Superficial palmar arterial arch
  12. The fourth dorsal interosseous muscle is innervated by the:
    deep branch of the ulnar nerve
    dorsal branch of the ulnar nerve
    recurrent (motor) branch of the median nerve
    superficial branch of the radial nerve
    superficial branch of the ulnar nerve
  13. A student is rollerblading on the Diag and while trying to avoid a bicyclist falls heavily on his right wrist. After the fall he notes severe pain in the anatomical snuff box. Radiological studies reveal a fracture of the bone deep to the snuff box called the

    A person carrying a soft drink in their right hand slipped on some ice and the bottle broke in their hand. A shard (jagged piece) of glass entered the hand and severed all of the tissue from the skin down to the metacarpal bone. The cut extended on the lateral side of the index finger, following the proximal transverse crease, clear to the proximal portion of the head of the second metacarpal bone. It did not extend over the third metacarpal.

    The clinical manifestations were as follows:
    1. The subject could not flex any part of the index finger
    2. The subject had trouble abducting and adducting the index finger
    3. The subject had total anesthesia on the palmar side of the index finger and the dorsal side of the distal part of the same digit
    4. There was considerable bleeding from severed vessels

    Repair proceeded and required six hours of surgery.

  14. Which of the following muscle tendons was NOT involved?
    the flexor digitorum profundus muscle
    the flexor digitorum superficialis muscle
    the first dorsal interosseous muscle
    the first lumbrical muscle
    the second palmar interosseous muscle
  15. Which of the following nerves was most likely cut?
    common palmar digital branches of the median nerve
    deep branch of the ulnar nerve
    dorsal digital branch of the radial nerve
    motor (recurrent) branch of the median nerve
    proper palmar digital branch of the ulnar nerve
  16. The excessive bleeding most likely came from which of the following arteries?
    deep palmar arterial arch
    princeps pollicis artery
    radial artery
    radialis indicis artery
    ulnar artery

    The following description pertains to the following questions:

    A patient sustained multiple deep lacerations on the palm of his hand and anterior surface of his wrist. During examination, the physician put a piece of paper between adjacent surfaces of the patient's index and middle fingers and found him unable to squeeze them together with sufficient force to hold the paper.

  17. What muscles are being tested?
    First dorsal and first palmar interosseous muscles
    First dorsal and second palmar interosseous muscles
    First lumbrical and second dorsal interosseous muscles
    Second dorsal and first palmar interosseous muscles
  18. The most specific nerve branch to these muscles is the:
    Deep branch of the ulnar nerve
    Median nerve
    Recurrent (motor) branch of the median nerve
    Superficial branch of the ulnar nerve
    Ulnar nerve
  19. Bleeding from a superficial cut in the middle of the palm of the hand near the proximal transverse crease comes mainly from what vessel?
    Princeps pollicis artery
    Radial artery
    Radialis indicis artery
    Superficial palmar arch
    Ulnar artery
  20. A deep puncture wound in the palmar surface of the little finger near the proximal IP joint might introduce infection into which synovial cavity:
    Bursa of flexor carpi ulnaris
    Fibrous digital sheath of fingers
    Intercarpal joint space
    Radial bursa
    Ulnar bursa
  21. In carpal tunnel syndrome, compression of the median nerve in the carpal tunnel affects which hand muscle?
    Adductor pollicis
    Second palmar interosseus
    Opponens digiti minimi
    Flexor pollicis brevis
  22. After suffering a cut deep to the hypothenar eminence, the patient is unable to hold a sheet of paper between the second and third digits. The nerve most likely injured was the:
    Deep radial
    Deep ulnar
    Recurrent (motor) branch of median
    Superficial radial
  23. What movement of the thumb would be most affected by lesion of the median nerve in the cubital fossa:
  24. Structures within the carpal tunnel include:
    Radial bursa
    Ulnar nerve
    Palmar aponeurosis
    Superficial palmar arterial arch
    Adductor pollicis muscle