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Questions and Answers

Which two rows comprise the eight carpal bones?

  • Lateral and medial rows
  • Proximal and distal rows (correct)
  • Anterior and posterior rows
  • Superior and inferior rows
  • What is the shape of the scaphoid bone?

  • Boat-shaped (correct)
  • Crescent-shaped
  • Three-sided
  • Hook-shaped
  • How many phalanges are present in the thumb?

  • Five
  • Two (correct)
  • Four
  • Three
  • Which of the following bones is not part of the distal row of carpal bones?

    <p>Pisiform</p> Signup and view all the answers

    What is the largest carpal bone?

    <p>Capitate</p> Signup and view all the answers

    What is the anatomical orientation of the base of the carpal bone arch?

    <p>Directed anteriorly</p> Signup and view all the answers

    Which retinaculum contains six tunnels?

    <p>Extensor retinaculum</p> Signup and view all the answers

    How many metacarpal bones are present in the hand?

    <p>Five</p> Signup and view all the answers

    Which bones form the lateral side of the carpal arch?

    <p>Scaphoid and Trapezium</p> Signup and view all the answers

    What structure forms the anterior wall of the carpal tunnel?

    <p>Flexor retinaculum</p> Signup and view all the answers

    Which of the following is NOT a part of the boundaries of the carpal tunnel?

    <p>Ulnar styloid</p> Signup and view all the answers

    The flexor retinaculum primarily functions to:

    <p>Hold long flexor tendons in position</p> Signup and view all the answers

    Which bones form the medial side of the carpal arch?

    <p>Pisiform and Hamate</p> Signup and view all the answers

    What is the primary role of the carpal tunnel?

    <p>To protect wrist tendons and nerves</p> Signup and view all the answers

    The deep part of the attachment of the flexor retinaculum is associated with which bone?

    <p>Trapezium</p> Signup and view all the answers

    Which aspect of the carpal bone arrangement contributes to forming the roof of the carpal tunnel?

    <p>Arch of the carpal bones</p> Signup and view all the answers

    Which tendon lies most anterior and medial within the carpal tunnel?

    <p>Tendons of the flexor digitorum superficialis</p> Signup and view all the answers

    Which structure is located anterior and lateral in the carpal tunnel?

    <p>Median nerve</p> Signup and view all the answers

    What is the function of the synovial sheaths in the carpal tunnel?

    <p>To protect and facilitate movement of the tendons</p> Signup and view all the answers

    Which of the following structures is not part of the carpal tunnel's contents?

    <p>Tendon of the palmaris longus</p> Signup and view all the answers

    Which nerve is located outside the carpal tunnel?

    <p>Ulnar nerve</p> Signup and view all the answers

    Which structure directly surrounds the tendon of the flexor pollicis longus?

    <p>A synovial sheath</p> Signup and view all the answers

    From medial to lateral, which is the first structure outside the carpal tunnel?

    <p>Ulnar nerve</p> Signup and view all the answers

    What arrangement do the tendons of the flexor digitorum superficialis have in relation to the flexor digitorum profundus tendons?

    <p>Superficial to the profundus tendons</p> Signup and view all the answers

    What is the primary function of the extensor retinaculum?

    <p>It holds the long extensor tendons in position.</p> Signup and view all the answers

    How many separate tunnels does the extensor retinaculum form for the long extensor tendons?

    <p>Six</p> Signup and view all the answers

    What anatomical structures separate the tunnels created by the extensor retinaculum?

    <p>Fibrous septa</p> Signup and view all the answers

    Which of the following tendons is NOT a part of the long extensor group listed?

    <p>Flexor Carpi Radialis</p> Signup and view all the answers

    Where is the extensor retinaculum located?

    <p>Across the back of the wrist</p> Signup and view all the answers

    Which anatomical component surrounds each tendon within the tunnels of the extensor retinaculum?

    <p>Synovial sheath</p> Signup and view all the answers

    Which muscle listed is responsible for wrist extension and is associated with the extensor retinaculum?

    <p>Extensor Digitorum</p> Signup and view all the answers

    What type of structural tissue predominantly composes the extensor retinaculum?

    <p>Dense connective tissue</p> Signup and view all the answers

    What is the primary cause of increased pressure on the median nerve?

    <p>Increased pressure due to overuse</p> Signup and view all the answers

    Which clinical sign is typically used to diagnose issues with the median nerve?

    <p>Tinel's sign</p> Signup and view all the answers

    What is the primary pathological feature of a ganglion cyst?

    <p>Herniation of synovial membrane</p> Signup and view all the answers

    In the case of a ganglion cyst, what is the most common symptom?

    <p>Painless swelling</p> Signup and view all the answers

    What is the appropriate management for an asymptomatic ganglion cyst?

    <p>Observation and follow-up</p> Signup and view all the answers

    What could potentially occur if a ganglion cyst compresses nearby structures?

    <p>Neuropathy and pain</p> Signup and view all the answers

    What is the significance of transillumination in assessing wrist masses?

    <p>Distinguishes between solid and fluid-filled lesions</p> Signup and view all the answers

    What is the likely diagnosis for a 27-year-old woman with a painless lump on her wrist that transilluminates?

    <p>Ganglion cyst</p> Signup and view all the answers

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