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Flashcards

Forearm and Hand

Gina Fatahi Inglês 99 flashcards

Flashcards do conjunto (99)

  1. 1joint between the carpals and radiusradiocarpal joint
  2. 2joint between the carpals and metacarpalsCarpometacarpal joint (CMC)
    **** Digit 1 --> has a a carpometacarpal joint , this is a saddle type joint of synovial joint between trapezium and base of 1st metacarpal. has a separate joint cavity. allows for movement in multiple planes.
  3. 3joint between the metacarpals and phalangesmetacarpophalangeal joint
    synovial
    condyloid type
    flexion/extension
    abduction/adduction
    strenghtened by medial/lateral collateral ligaments
  4. 4which digit doesn't have an intermediate phalange?digit 1 - thumb
  5. 58 carpals of the wristsome lovers try positions that they can't handle
    scaphoid, lunate, triquetrum, pisiform, trapezium, trapezoid, capitate, hamate
  6. 6Wrist joints: radiocarpal joint type: what strengthens it? movements:condyloid joint - synovial
    no participation with ulna
    ligaments strengthen the joint capsule anteriorly and posteriorly
    movements:
    flexion/extension
    abduction/adduction
    circumduction
  7. 7Intercarpal joints type:synovial joints between adjacent carpal bones
  8. 8Interphalangeal joints (PIP/DIP)Proximal/distal interphalangeal joints
    synovial joints, hinge type
    flexion/extension
    strengthened by medial/collateral ligaments
  9. 9Interosseous membrane : separates , compartmentsseparates forearm into compartments
    anterior = flexors and pronators, largely median and some ulnar nerve innervation
  10. 10Antebrachial fasciathickens around wrist - anteriorly as the palmar carpal ligament and flexor retinaculum
    posteriorly as extensor retinaculum
    this thickening prevents "bowstringing" of muscle tendons
  11. 11flexor retinaculum (transverse carpal ligament)converts the concavity formed by the carpal bones into the carpal tunnel contents: Median Nerve
    Flexor digitorium superficialis
    flexor pollicis longus
    flexor digitorium profundus
    Function: flexor retinaculum prevents bowstringing of tendons
  12. 12Palmar aponeurosisstrong covering of the soft tissues and overlies the long tendons
    contributes to the flexor tendon sheaths distally
  13. 134 superficial muscles orginates anteriorly (front of the forearm) from a tendon that attaches to the medial epicondyle of humeruscommon flexor tendon
    (lateral to medial)
    pronator teres, flexor carpii radialis (FCR)
    palmaris longus
    flexor carpi ulnaris (FCU)
    Pass fail pass fail
  14. 14Pronator teres : ActionAction : pronates and flexes forearm at elbow
  15. 15Pronator teres : Insertionmiddle portion of lateral radius
  16. 16Pronator teres : originmedial epicondyle of humerus
    coronoid process of ulnar head
  17. 17Pronator teres : InnervationMedian Nerve
  18. 18Flexor carpi radialis : Actionflexes and abducts hand at wrist
  19. 19Flexor carpi radialis : InnervationMedian Nerve
  20. 20Origin of flexor carpi radialismedial epicondyle
  21. 21Insertion of flexor carpi radialisbase of 2nd metacarpal
  22. 22Palmaris longus : originmedial epicondyle
  23. 23Insertion of Palmaris longuspalmar aponeurosis (apex) and flexor retinaculum
  24. 24Palmaris longus : ACtionflexes hand at wrist and tenses palmar aponeurosis
  25. 25Palmaris longus: InnervationMedian nerve
  26. 26Flexor carpi ulnaris : originhumeral head : medial epicondyle
    ulnar head: olecranon process
  27. 27flexor carpi ulnaris: insertionpisiform and hook of hamate , 5th metacarpal
  28. 28flexor carpi ulnaris: Actionflexes and adducts (ulnar deviation) hand at wrist
  29. 29Flexor carpi ulnaris: InnervationUlnar nerve
  30. 30Flexor digitorium superficialis : one muscle, two heads , explain bye bye fist : Action"bye bye fist"
    doesn't do a really fist because it doesn't extend to the tips of the fingers (just the intermediate)
    flexes middle phalanges at the proximal interphalangeal joint of digits 2-5; may assist flexion of proximal phalanges at metacarpophalangeal joints
  31. 31flexor digitorium superficialis : Insertionintermediate phalanx, digits 2-5
  32. 32Flexor digitorium superificalis : origin humeroulnar head radial headmedial epicondyle , coronoid process
    radial head : superior portion of radius
  33. 33flexor digitorum superificials : innervationMedian nerve
  34. 34Deep layers of forearm : 3 muscles are innervated by theanterior interosseous nerve (branch of the median nerve)
  35. 35Deep muscles of the forearm:flexor digitorium profundus, flexor pollicis longus, pronator quadratus
  36. 36Flexor digitorum profundus : actionallows you to do an actual fist (works at the tips)
    flexes distal phalanges at the distal interphalangeal joint of digits 2-5
  37. 37Flexor digitorum profundus: originproximal ulna and interosseous membrane
  38. 38flexor digitorium profundus: Insertionbases of distal phalanx of digits 2-5
  39. 39Flexor digitorum profundus : Innervationdigits 2-3: Anterior interosseous nerve (branch of median nerve)
    digits 4-5: ulnar nerve
  40. 40Flexor pollicis longus Action:goes all the way to the tip of the thumb and causes flexion
    flexes phalanges of digit 1
  41. 41Flexor pollicis longus: Innervationmedian nerve (via a branch, the anterior interosseous nerve)
  42. 42Flexor pollicis longus : originradius, interosseous membrane
  43. 43flexor pollicis longus: insertionbase of distal phalanx of digit 1 (pollex)
  44. 44Pronator quadratus : Actionlooks like you're going to punch someone ( pronates forearm, bind radius and ulna together
  45. 45Pronator quadratus: origindistal ulna
  46. 46pronator quadratus insertion:distal radius
  47. 47Pronator quadratus: innervationmedian nerve (via a branch of the anterior interosseous nerve)
  48. 48Ulnar nerve is located where in the anterior forearm :Under the flexor carpi ulnaris (superficial) /above the flexor digitorium profundus (deep)
  49. 49what muscles of the anterior arm is innervated by ulnar nerve?flexor carpi ulnaris and 1/2 of flexor digitorium profundus (digits 4/5)
    the rest is median nerve
  50. 50Lumbricals : Actionssqueeze thumb against other fingers - knuckles start to hurt - due to the 4 lumbricals (they go from the flexor digitorium profundus tendon and reach around radial side, pull and extend finger (puppet muscles)
    flex metacarpophalangeal joint, extend interphalangeal joints of digits 2-5
  51. 51Lumbricals: Origintendons of flexor digitorium profundus
  52. 52Lumbricals: insertionlateral sides of extensor expansions of 2 -5 digits
  53. 53Lumbricals: InnervationLumbricals 1/2 : median nerve (medial and lateral branches)
    Lumbricals 3/4: deep branch of ulnar nerve
  54. 541/2 LOAF Muscles are innervated by median nerve.1/2 of the lumbricals (4/5)
    Thenar muscles:
    Abductor pollicis brevis
    Opponens pollicis
    flexor pollicis brevis
    Innervated: by the recurrent branch of the median nerve
    "Brevis sandwich"
    Opponens in the middle
  55. 553 Palmar interossei : ActionPalmar Interossei ADduct = PAD
    Adduction of 2,4,5 digits and flexion of the metacarpophalangeal joint
  56. 563 Palmar Interossei: OriginPalmar surfaces of 2nd, 4th, and 5th MCs (unipennate)
  57. 573 Palmar Insertion:2nd, 4th, 5th proximal phalanges and extensor expansions
  58. 583 Palmar Interossei innervation:deep branch of the ulnar nerve
  59. 594 Dorsal Interossei : ActionDAB (dorsal interossei ABduct = DAB
    abduction of digits 2-4) digit 5 doesn't count because it already has an aBductor digiti minimi ( 4 muscles because the middle finger can move in both directions)
  60. 604 Dorsal Interossei muscles: originadjacent surfaces of MCs
  61. 614 Dorsal Interossei : Insertiondigits 2-4, bases of proximal phalanges, extensor expansion
  62. 624 Dorsal Interossei : InnervationDeep branch of the ulnar nerve
  63. 63Posterior Arm : 12 Muscles (8 in the front/12 on the back)6 superficial and 6 deep
  64. 64Brachioradialis: Actionfrom the extensor side, comes over and grabs radius --> which causes strong mid-pronated position and flexion of the elbow ( when protonated) - reverse curls
    * side note- normal curls - biceps brachialis
  65. 65Brachioradialis : Originsupracondylar ridge of humerus
  66. 66brachioradialis: insertiondistal lateral radius
  67. 67brachioradialis: innervationradial nerve
  68. 68Extensor carpi radialis longus /brevis : Actiongo to wrist bones and cause extension of wrist
    Extend wrist/abduct (radial deviation) the hand at the wrist, fist clenching - longus only
  69. 69Extensor carpi radialis longus/brevis : originlongus - supracondylar ridge of humerus
    brevis - lateral epicondyle
  70. 70Extensor carpi radialis longus/brevis: Insertionlongus - inserts at the base of 2nd metacarpal
    Brevis- inserts at the base of 3rd metacarpal
  71. 71Extensor carpi radialis longus/brevis: Innervationradial nerve for longus and radial nerve (deep branch) for brevis
  72. 72Extensor Digitorium : ActionAll four fingers
    primary extension at metacarpophalangeal joint digits 2-5
    secondary extension at interphalangeal joints (distal, middle, proximal)
  73. 73Extensor Digitorum : InnervationRadial nerve
  74. 74Extensor digitorum : Originlateral epicondyle
  75. 75Extensor Digitorum : InsertionExtensor expansion of digits 2-5
  76. 76Extensor Digiti Minimi: ActionPrimary extension at metacarpophalangeal joint of digit 5
    secondary extension at interphalangeal joints of digit 5
  77. 77Extensor digiti minmi : Dr. evil Originlateral epicondyle
  78. 78extensor digiti minimi : Insertionextensor expansion of digit 5
  79. 79Extensor digiti minimi: Innervationradial nerve (deep branch)
  80. 80Extensor carpi ulnaris : origin2 heads: lateral epicondyle, and posterior border of ulna
  81. 81Extensor carpi ulnaris : insertionbase of 5th metacarpal
  82. 82Extensor carpi ulnaris : actionextends and adducts (ulnar deviation) the hand at the wrist
  83. 83Supinator : ActionSupinates forearm
  84. 84Supinator: Originlateral epicondyle, radial collateral and annular ligament, ulna
  85. 85Supinator: Insertionproximal 1/3 of the radius
  86. 86Supinator: Innervationradial nerve
  87. 87Snuff box - 3 muscles (deep to posterior arm)Abductor pollicis longus, extensor pollicis brevis, and extensor pollicis longus
    (Brevis sandwich!)
  88. 88Abductor pollicis longus: Actionabduction of thumb and extends it at the carpometacarpal joint
  89. 89Abductor pollicis longus: Originproximal 1/3 of posterior ulna, radius, and interosseous membrane
  90. 90Abductor pollicis longus: Insertionbase of 1st metacarpal
  91. 91Abductor pollicis longus: InnervationRadial nerve (via posterior interosseous nerve,a continuation of the deep branch of the radial nerve)
  92. 92Extensor pollicis longus : Actionextends distal phalanx of thumb at interphalangeal joint, extends carpometacarpal and metacarpophalangel joint.
  93. 93Extensor pollicis brevis: Actionextends proximal phalanx of thumb at the metacarpophalangeal joint, also extends carpometacarpal joint.
  94. 94Extensor pollicis brevis: Origindistal 1/3 of posterior radius and interosseous membrane
  95. 95Extensor pollicis brevis: Insertionbase of proximal phalanx of digit 1
  96. 96Extensor pollicis longus : actionextends distal phalanx of thumb
  97. 97Extensor pollicis longus: Insertionbase of digital phalanx of digit 1
  98. 98Extensor indicis: actionextends proximal phalanx of digit 2, also extends hand at wrist
  99. 99Extensor indicis: origindistal 1/3 of posterior ulna and interosseous membrane

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FlashCards sobre Forearm and Hand , criado por Gina Fatahi em 09-02-2015.
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Gina Fatahi
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