Superficial Anatomy of the Upper Limb
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Questions and Answers

In the forearm, which structure is medial to the radial artery?

  • Flexor carpi ulnaris tendon (correct)
  • Ulnar artery
  • Flexor carpi radialis tendon
  • Palmaris longus tendon
  • Which tendon inserts on the pisiform bone and can be palpated along the medial margin of the forearm?

  • Flexor carpi radialis tendon
  • Palmaris longus tendon
  • Flexor carpi ulnaris tendon (correct)
  • Extensor digitorum tendon
  • Where does the ulnar artery travel as it enters the hand?

  • Under the flexor carpi ulnaris tendon (correct)
  • Lateral to the pisiform
  • Under the palmaris longus tendon
  • Under the flexor carpi radialis tendon
  • Which structure lies between the long tendons of the digits of the hand and the palmaris longus tendon?

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

    Which structure is deep to the flexor carpi radialis tendon and particularly prominent with wrist flexion against resistance?

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

    What can be visualized by rapidly and repeatedly flexing and extending the fingers from medial to lateral?

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

    Which muscle's distal ends' tendons are located on the lateral side of the wrist and can be accentuated by making a tight fist and extending the wrist against resistance?

    <p>Extensor carpi radialis longus muscle</p> Signup and view all the answers

    What structure forms the lateral margin of the anatomical snuffbox?

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

    Which muscle's tendon can be felt on the far medial side of the wrist between the distal end of the ulna and the wrist?

    <p>Extensor carpi ulnaris muscle</p> Signup and view all the answers

    What is visualized with hyperextension and abduction of the thumb?

    <p>Anatomical snuffbox</p> Signup and view all the answers

    What structure passes through the anatomical snuffbox when traveling laterally around the wrist to reach the back of the hand?

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

    What structures mark the proximal margin of the flexor retinaculum?

    <p>The pisiform bone and the tubercle of the scaphoid</p> Signup and view all the answers

    Where does the distal margin of the flexor retinaculum lie approximately?

    <p>At the base of the palm where the thenar and hypothenar eminences meet</p> Signup and view all the answers

    Which nerve lies deep to the skin and deep fascia overlying the anterior margin of the thenar eminence near the midline of the palm?

    <p>The recurrent branch of the median nerve</p> Signup and view all the answers

    Where does the superficial palmar arch originate?

    <p>As a continuation of the ulnar artery, lateral to the pisiform bone at the wrist</p> Signup and view all the answers

    What is the course of the superficial palmar arch?

    <p>It curves laterally across the palm anterior to the long flexor tendons in the hand</p> Signup and view all the answers

    Where does the deep palmar arch originate?

    <p>On the lateral side of the palm deep to the long flexor tendons and between the proximal ends of metacarpals I and II</p> Signup and view all the answers

    Which of the following is the correct description of the deep palmar arch?

    <p>It is more proximal in the hand than the superficial palmar arch and lies approximately one-half of the distance between the distal wrist crease and the proximal transverse skin crease of the palm.</p> Signup and view all the answers

    Where can the axillary pulse be felt?

    <p>In the axilla lateral to the apex of the dome of skin covering the floor of the axilla.</p> Signup and view all the answers

    Where can the brachial pulse be felt in the midarm?

    <p>On the medial side of the arm in the cleft between the biceps brachii and triceps brachii muscles.</p> Signup and view all the answers

    Where can the brachial pulse be felt in the cubital fossa?

    <p>Medial to the tendon of the biceps brachii muscle.</p> Signup and view all the answers

    Where can the radial pulse be felt in the distal forearm?

    <p>Immediately lateral to the tendon of the flexor carpi radialis muscle.</p> Signup and view all the answers

    What is the purpose of placing a blood pressure cuff on the medial side of the arm in the cleft between the biceps brachii and triceps brachii muscles?

    <p>To measure the brachial pulse in midarm.</p> Signup and view all the answers

    Which of the following statements about the median nerve is correct?

    <p>It courses with the brachial artery.</p> Signup and view all the answers

    Which of the following muscles forms the soft tissue mass posterior to the humerus?

    <p>Triceps brachii</p> Signup and view all the answers

    Which of the following structures is readily palpable and forms the bony protuberance at the 'tip' of the elbow?

    <p>Olecranon of the ulna</p> Signup and view all the answers

    Which of the following muscles is particularly prominent when the forearm is half pronated, flexed at the elbow against resistance, and viewed anteriorly?

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

    Where does the radial nerve in the distal arm emerge from?

    <p>From behind the humerus</p> Signup and view all the answers

    Which of the following tendons is located approximately at the junction between the lateral and middle thirds of an imaginary line drawn transversely across the distal forearm?

    <p>Flexor carpi radialis</p> Signup and view all the answers

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