Anatomy of Dorsal Interosseous Muscle and Flexor Retinaculum
26 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which nerve supplies the Abductor pollicis brevis muscle?

  • Median nerve (correct)
  • Radial nerve
  • Ulnar nerve
  • Musculocutaneous nerve
  • What is the origin of the Flexor pollicis brevis muscle?

  • Trapezium and first metacarpal
  • Trapezium and capitate
  • Flexor retinaculum and scaphoid
  • Flexor retinaculum and trapezium (correct)
  • Which of the following is NOT a thenar muscle?

  • Abductor pollicis brevis
  • Abductor digiti minimi (correct)
  • Flexor pollicis brevis
  • Opponens pollicis
  • Which compartment of the hand contains the lumbrical muscles?

    <p>Central compartment</p> Signup and view all the answers

    Which artery supplies the superficial palmar arterial arch?

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

    Which muscle is responsible for extending the index finger?

    <p>Extensor indicis proprius</p> Signup and view all the answers

    Which compartment of the hand contains the Opponens pollicis muscle?

    <p>Thenar compartment</p> Signup and view all the answers

    Which nerve supplies the palmar aspect of the thumb?

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

    Which muscle is responsible for abducting the thumb?

    <p>Abductor pollicis brevis</p> Signup and view all the answers

    Which nerve supplies the hypothenar muscles?

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

    Which muscle originates from the pisiform bone and inserts into the medial side of the proximal phalanx of the 5th digit?

    <p>Abductor digiti minimi</p> Signup and view all the answers

    What is the origin of the Opponens digiti minimi muscle?

    <p>Hamate &amp; flexor retinaculum</p> Signup and view all the answers

    Which muscle is innervated by the median nerve among the intrinsic muscles of the hand?

    <p>Opponens pollicis</p> Signup and view all the answers

    What is the primary function of the Lumbrical muscles in the hand?

    <p>Flex MCP joints &amp; extend IP joints</p> Signup and view all the answers

    From where do the Palmar interosseous muscles originate?

    <p>2nd, 4th, and 5th metacarpal bones</p> Signup and view all the answers

    Which intrinsic hand muscle has the unique feature of originating from the body of the 3rd metacarpal bone?

    <p>Adductor pollicis muscle</p> Signup and view all the answers

    Which muscle is responsible for the extension of the second, third, and fourth digits?

    <p>Dorsal interosseous muscle</p> Signup and view all the answers

    What structure forms the roof of the carpal tunnel?

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

    Which structure passes superficial to the flexor retinaculum?

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

    What is the cause of carpal tunnel syndrome?

    <p>Both inflammation of the flexor retinaculum and anterior dislocation of the lunate bone</p> Signup and view all the answers

    Which nerve provides sensory innervation to the palmar surface of the hand?

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

    Which artery forms the deep palmar arch?

    <p>Radial artery and deep branch of the ulnar artery</p> Signup and view all the answers

    Which artery supplies blood to the dorsum of the hand?

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

    What type of joint is the wrist joint (radiocarpal joint)?

    <p>Condyloid joint</p> Signup and view all the answers

    Which joint of the hand is a saddle joint?

    <p>Carpometacarpal joint of the thumb</p> Signup and view all the answers

    What type of movement is possible at the metacarpophalangeal joints?

    <p>All of the above</p> Signup and view all the answers

    More Like This

    Thumb Flexor Muscles Anatomy Quiz
    15 questions
    Forearm Flexor Muscles Anatomy
    8 questions
    Muscles Chapter 3 Flashcards
    27 questions
    Use Quizgecko on...
    Browser
    Browser