anatomy muscloskeletal 4

Anatomy: Musculoskeletal 4


Become familiar with the anatomy of the forearm and hand.


1. Locate the carpal bones.

2. Locate the position of the flexor retinaculum and its bony attachments.

3. Identify the nature and contents of the carpal tunnel

4. Identify the muscles that move the thumb and the arrangement of the flexor tendons for a typical finger.

5. Identify the muscle groups involved in flexion at the wrist and fingers and list the segmental spinal nerve roots responsible for each movement

6. Locate the course of the median nerve and palmar arterial arches in the forearm/hand.

7. Locate the tendons, nerves and pulses on the volar aspect of the wrist.

8. Identify the muscle groups involved in extension of the wrist and fingers.

9. Demonstrate and test extension at the wrist, and list the spinal segmental root values involved in these movements.

10. Identify the boundaries and contents of the "anatomical snuff box".

11. Demonstrate the movements of the thumb and fingers.

12. Demonstrate the territories of cutaneous sensation in the ha


1. which is false of shaft and distal radius

  • dorsal tubercle for an extensor of the thumb
  • head articulates with scaphoid and hamate carpal bones
  • interosseous border provides attachment for the interosseous membrane
  • ulna notch for articulation with ulna
  • styloid process on lateral surface of the bone
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Other questions in this quiz

2. which is false of the distal/shaft of ulnar

  • styloid process projects distally and articulates with the ulna notch
  • interosseous boder runs on lateral surface
  • radius articulates with ulna in three places
  • head is rounded and covered in articular cartiage
  • superior surface of olecronon provides attachment for triceps

3. which is true of the foream extensors

  • movement of elbow joint
  • flexion of fingers
  • supination
  • three layers superficial, intermediate and deep
  • superficial extensors all originate from the medial epicondyle

4. extensor muscles are supplied by the radial nerve C6,7,8 damage could result in wrist drop

  • True
  • False

5. which is false of the forearm extensors

  • deep layer except supinator all arise from interosseous mebrane
  • extensor carpi radialis extends and abducts the wrist
  • brachicoradialis extends and abducts the wrist
  • supinator arises from lateral epicondyle
  • extensor carpi ulnaris extends and adducts the wrist


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