Anatomy of the Hand: Carpal Bones and Flexor Retinaculum
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Questions and Answers

What is the main structure that completes the carpal arch by attaching to the flexor retinaculum?

  • Scaphoid bone
  • Trapezium bone
  • Pisiform bone (correct)
  • Hamate bone

    • What nerve passes through the carpal tunnel?

  • Median nerve (correct)
  • Axillary nerve
  • Radial nerve
  • Ulnar nerve

    • Which of the following tendons does NOT pass through the carpal tunnel?

  • Flexor digitorum profundus tendon
  • Extensor digitorum communis tendon (correct)
  • Flexor digitorum superficialis tendon
  • Flexor pollicis longus tendon

    • What is the result of compression of the median nerve within the carpal tunnel?

    <p>Carpal tunnel syndrome</p> Signup and view all the answers

    What is the main function of the flexor retinaculum?

    <p>To convert the concave anterior surface of the wrist into an osteofascial tunnel</p> Signup and view all the answers

    Which structure passes superficial to the flexor retinaculum?

    <p>Palmar cutaneous branch of median nerve</p> Signup and view all the answers

    What is the purpose of the synovial sheath?

    <p>To lubricate the tendons</p> Signup and view all the answers

    What is the function of the septa sent by the extensor retinaculum?

    <p>To form compartments for the tendons</p> Signup and view all the answers

    What is the Anatomical Snuff Box also known as?

    <p>Radial fossa</p> Signup and view all the answers

    Which tendon is located at the ulnar border of the Anatomical Snuff Box?

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

    What is the shape of the Anatomical Snuff Box?

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

    What structures pass deep to the Extensor Retinaculum?

    <p>Tendons of the extensor carpi ulnaris and extensor digiti minimi</p> Signup and view all the answers

    What is the relationship between the ulnar nerve and the pisiform bone?

    <p>The ulnar nerve lies lateral to the pisiform bone</p> Signup and view all the answers

    What is the purpose of the extensor retinaculum?

    <p>To hold the long extensor tendons in position</p> Signup and view all the answers

    What vein is located on the medial aspect of the wrist?

    <p>Basilic vein</p> Signup and view all the answers

    What is the origin of the palmar cutaneous branch of the ulnar nerve?

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

    What is the attachment of the extensor retinaculum medially?

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

    What is the structure that lies superficial to the flexor retinaculum?

    <p>Palmaris longus tendon</p> Signup and view all the answers

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