flexors in arm

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Author:
Naheer
ID:
53585
Filename:
flexors in arm
Updated:
2010-12-10 12:37:46
Tags:
anatomy
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Description:
flexor muscles in the arm
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  1. retinacula
    strong fascial bands that help tendons of muscles in hand stay close to bones
  2. mainly all flexors are innervated by ____ nerve and extensors are innervated by _____ nerve
    median, radial
  3. what are the 4 superficial flexors?
    pronator teres, flexor carpi radialis, flexor carpi ulnaris and palmaris longus
  4. what is the intermediate flexor?
    flexor digitorum superficialis
  5. what are the 3 deep flexors?
    flexor digitorum profundus, flexor pollicus longus and pronator quadratus
  6. Pronator Teres
    • o:medial epicondyle of humerus
    • i:lateral surface radius
    • a:flex and pronate
    • inn:median nerve
  7. for all the forearm flexors what is the general origin insertion action and innervation..?
    • O: humerus radius and ulna
    • I:carpals, metacarpals and phalanges
    • Inn:median and some ulnar
    • A: flex the hand and digits
  8. Flexor carpi radialis
    • o: medial epicondyle humerus
    • i: base 2nd and 3rd metacarpals
    • inn: median nerve
    • A: flex and adduct at wrist
  9. palmaris longus
    • o:Medial epicondyle ofhumerus
    • i:flexor retinaculum and palmar aponeurosis
    • inn:median
    • a:flex
  10. flexor carpi ulnaris
    • o: olecranon ulna
    • i: pisiform hook of hamate and 5th metacarpal
    • inn: ulnar
    • a: flex and abduct hand
  11. Flexor digitorum superficialis
    • O: Medial epicondyle of humerus, ulna, radius
    • I: Middle phalanges of medial 4 digits
    • A: Flexes proximalinter‐phalangeal (IP)joints and metacarpophalangealjoints(MP)
    • Inn: median nerve
  12. Flexor digitorum profundus
    • o:ulna and interosseous membrane
    • i: distal phalanges 2-5
    • inn: flex distal interphalangeal joints
    • a: median and ulnar
  13. Flexor Pollicis Longus
    • o: radius and interosseous membrane
    • i: distal phalnx of thumb
    • a: flex thumb
    • inn: median nerve
  14. Pronator quadratus
    • o: distal portion of shaft of ulna
    • i: distal portion shaft of radius
    • a: pronate forearm

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