Muscles of the forearm

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BokaliMali
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243231
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Muscles of the forearm
Updated:
2013-10-27 21:11:24
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muscles anatomy OVCMT
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lecture 7 notes
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  1. Superficial anterior compartment
    • Pronator teres
    • Flexor carpi radialis
    • palmaris longus
    • flexor carpi ulnaris
  2. Middle anterior compartment
    Flexr digitorum superficialis
  3. Deep anterior compartment
    • flexor digitorum profundus
    • flexor pollicis longus
    • pronator quadratus
  4. superficial posterior compartment
    • brachioradialis
    • extensor carpi radialis longus
    • extensor carpi radialis brevis
    • extensor digitorum
    • extensor digiti minimi
    • exstensor carpi ulnaris
  5. deep posterior compartment
    • supinator
    • abducor pollicis longus
    • extensor pollicis longus
    • extensor pollicis brevis
    • extensor indicus
  6. Pronator teres
    • O: Humeral head: medial epicondyle of humerus, above CFO
    • Ulnar head: coronoid procces of ulna (med surface)

    I: midlateral surface of shaft of radius

    V: Median n (C5-T1)
  7. Flexor carpi radialis
    O: medial epicondyle of humerus (CFO)

    I: base of 2nd and 3rd metacarpals

    V: Median n (C5-T1)
  8. Palmaris Longus
    O: CFO

    I: Palmar carpal ligament and apaneurosis

    V: Median n (C5-T1)
  9. Flexor Carpi Ulnaris
    • O: Humeral head: CFO
    • Ulnar head: olecranon and post. border sup. 2/3 of ulna

    I: pisiform, hook of hamate, base of 5th metacarpal

    V: Ulnar n (C7-T1)
  10. Flexof digitorum superficialis
    • O: Humeroulnar head: med. epicondyle of humerus and med. coronoid proccess of ulna
    • Radial head: oblique line of radius (ant. surface)

    I: shaft of middle phalanges of digits 2-5

    V: Median n (C5-T1)
  11. Flexor Digitorum Profundus
    O: Proximal 2/3 of ant. surface of ulna and interosseus membrane

    I: bases of distal phalanges of digits 2-5

    V: median and ulnar nerves
  12. Flexor pollicus longus
    O: ant surface of radius (middle half) and interosseus membrane

    I: base of distal phalanx of thumb

    V: median n and ant. interosseus branch
  13. Pronator quadratus
    O: distal 1/4 of ant. ulna

    I: distal 1/4 of ant. radius (dist. to O)

    V: median and ant. inerroseus branch
  14. Brachioradialis
    O: lateral sup.condular ridge of humerus and lat. intermuscular septum

    I: base of styloid proccess of radius

    V: Radial n. (C5-T1)
  15. Extensor carpi radialis longus
    O: dist. 1/3 of lat. sup.condular ridge of humerus

    I: base of 2nd metacarpal

    V: radial (C5-T1)
  16. Extensor carpi radialis brevis
    O: CEO

    I: Base of 3rd metacarpal

    V: radial n (C5-T1)
  17. Extensor digitorum
    O: CEO

    I: mid and dist. phalanges of digits 2-5

    V: Deep radial n. (C5-T1)
  18. Extensor digiti minimi
    O: CEO

    I: tendon of ext. digitorum of 5th digit

    V: deep radial n (C5-T1)
  19. Extensor carpi ulnaris
    O: CEO and post. border of ulna

    I: base of 5th metacarpal
  20. Supinator
    O: Lat. epicondyle of humerus, annular ligament then sup. crest of ulna

    I: sup. 1/3 of lat. ant. surface of radius

    V: Deep radial n (C5-T1)
  21. Abductor pollicus longus
    O: post. surface of middle radius, ulna and interosseus membrane

    I: base of 1st metacarpal

    V: deep radial n (C5-T1)
  22. Extensor pollicis longus
    O: mid 1/3 of post. surface of ulna and interosseus membrane (dist to AbdPL)

    I: base of distal phalanx of thumb

    V: deep radial n (C5-T1)
  23. Extensor pollicis brevis
    O: Post. surface of middle of radius and interosseus membrane (dist. to AbdPL)

    I: Base of proximal phalanx of thumb
  24. Extensor indicus
    O: Dist. post. surface of ulna and interosseus membrane

    I: Tendon of extensor digitorum at 2nd digit

    V: deep radial n (C5-T1)
  25. Triceps brachii
    • O: Long head: infraglenoid tubercle of scapula
    • Lateral head: lat. post. surface of humerus sup. to radial groove
    • Medial head: post. humerus dist. to radial groove

    I: olecranon proccess of ulna

    V: Radial n (C5-T1)
  26. Anconeus
    O: lat. epicondyle of humerus, post. surface

    I: post. olecranon proccess and prox. shaft of ulna

    V: Radial n (C5-T1)

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