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Flashcards

Anatomy-Antebrachium

Jerrick Gencianeo Anatomy Hard English 128 cards

Cards in this deck (128)

  1. 1Boundaries of the Cubital FossaSuperior
    Medial
    Lateral
  2. 2Superior BoundaryImaginary line connecting the epicondyle
  3. 3Medial Boundarypronator teres
  4. 4Lateral Boundarybrachioradialis
  5. 5Floor of the Cubital Fossabrachialis and supinator muscles
  6. 6Roof of the Cubital Fossadeep fascia and bicipital aponeurosis
    - covered by superficial fascia and skin
  7. 7Muscles in the Cubital RegionPronator teres – medial border
    Brachioradialis – lateral border
    Supinator – floor
  8. 8Has 2 heads of proximal attachmentPronator Teres
  9. 9Origin of Pronator Teres (Humeral head)Medial Epicondyle of Humerus
  10. 10Origin of Pronator Teres (Ulnar head)Medial Border of Coronoid Process
  11. 11Insertion of Pronator TeresMiddle of lateral surface of radius
  12. 12Action of Pronator TeresPronates the forearm and flexes it
    - assists the pronator quadratus during
    pronation and is a weak flexor of the forearm
  13. 13Nerve Supply Nerve Roots and Blood Supply of Pronator TeresMedian Nerve - C6,7 - Anterior ulnar recurrent artery
  14. 14Most superficial muscle on the radial side of the forearmBrachioradialis
  15. 15Origin of Brachioradialisproximal 2/3 of supracondylar ridge of
    humerus
  16. 16Insertion of Brachioradialislateral surface of distal end of radius
  17. 17Action of Brachioradialisflexes forearm especially when quick
    movement is required or when a weight is lifted during
    slow flexion of the forearm
  18. 18Nerve Supply Nerve Roots and Blood Supply of BrachioradialisRadial Nerve - C5,6,7 - Radial Artery
  19. 19Lies deep in the cubital fossa - humeral and ulnar heads of attachment envelope the neck and proximal part of the body of the radiusSupinator
  20. 20Origin of Supinatorlateral epicondyle of humerus, radial collateral
    and annular ligaments, supinator fossa and crest of ulna
  21. 21Insertion of Supinatorlateral, posterior and anterior surfaces of
    proximal third of radius
  22. 22Action of Supinatorprime mover in supination of the forearm and
    hand
  23. 23Nerve Supply Nerve Roots and Blood Supply of SupinatorDeep branch of Radial Nerve - C5,6 - Radial recurrent artery and posterior interosseous arteries
  24. 24Muscles of the ForearmFlexor/Volar/Anterior Surface
    Extensor/Dorsal/Posterior
  25. 25Flexor/Volar/Anterior Surface Superficial Grouppronator teres
    flexor carpi radialis
    palmaris longus
    flexor carpi ulnaris
  26. 26Flexor/Volar/Anterior Surface Intermediate Groupflexor digitorum superficialis/sublimis
  27. 27Flexor/Volar/Anterior Surface Deep Groupflexor digitorum profundus
    flexor pollicis longus
    pronator quadratus
  28. 28Medial to the pronator teresflexor carpi radialis
  29. 29Origin of the Flexor Carpi Radialismedial epicondyle of humerus
  30. 30Insertion of Flexor Carpi Radialisbase of 2nd metacarpal bone
  31. 31Action of Flexor Carpi Radialisflexes hand and abducts it
  32. 32Nerve Supply Nerve Roots and Blood Supply of flexor carpi radialisMedian Nerve - C6,7 - Radial Artery
  33. 33in the middle of the forearm, its fleshy belly is replaced by a long, flattened tendon that becomes cordlike as it approaches the wrist - tendon is a good guide to the radial artery which lies lateral to itflexor carpi radialis
  34. 34- small, fusiform muscle; is absent on one or both sides (usually the left) in about 14% of people, but its actions are not missedpalmaris longus
  35. 35Origin of palmaris longusmedial epicondyle of humerus
  36. 36Insertion of palmaris longusdistal half of flexor retinaculum and palmar
    aponeurosis
  37. 37Action of palmaris longusflexes hand and tightens palmar aponeurosis
  38. 38Nerve Supply Nerve Roots and Blood Supply of palmaris longusMedian Nerve - C7,8 - Posterior ulnar artery
  39. 39its tendon is a useful guide to the median nerve which passes lateral to itpalmaris longus
  40. 40most medial of the superficial of the flexors has two heads between which the ulnar nerve passesflexor carpi ulnaris
  41. 41Origin of flexor carpi ulnaris (Humeral)medial epicondyle
  42. 42Origin of flexor carpi ulnaris (Ulnar)olecranon and posterior border of ulna
  43. 43Insertion of flexor carpi ulnarispisiform bone, hook of hamate bone and 5th
    metacarpal bone
  44. 44Action of flexor carpi ulnarisflexes and adducts the the hand
  45. 45Nerve Supply Nerve Roots and Blood Supply of flexor carpi ulnarisUlnar Nerve - C8, T1 - Posterior ulnar recurrent artery
  46. 46tendon is a good guide to the ulnar nerve and artery which are on its lateral sideflexor carpi ulnaris
  47. 47largest superficial muscle in the forearm - has 2 heads; forms an intermediate layer b/n the superficial and deep groupsflexor digitorum superficialis/sublimis
  48. 48the ulnar and median nerves and the ulnar artery pass deeply between the headsflexor digitorum superficialis/sublimis
  49. 49near the wrist, gives rise to 4 tendons which pass deep to the flexor retinaculum where they are surrounded by a common flexor synovial sheathflexor digitorum superficialis/sublimis
  50. 50Origin of flexor digitorum superficialis/sublimis (humeroulnar head)medial epicondyle of
    humerus, ulnar collateral ligament, coronoid process of ulna
  51. 51Origin of flexor digitorum superficialis/sublimis (radial head)superior half of anterior border
    of radius
  52. 52Insertion of flexor digitorum superficialis/sublimisbodies of the medial 4 digits
  53. 53Action of flexor digitorum superficialis/sublimisflexes middle phalanges of medial 4 digits;
    acting more strongly, flexes proximal phalanges and hand
  54. 54Nerve Supply Nerve Roots and Blood Supply of flexor digitorum superficialis/sublimisMedian Nerve - C7,8,T1 - Ulnar and Radial arteries
  55. 55the only one that can flex the distal interphalangeal jointsflexor digitorum profundus
  56. 56Origin of flexor digitorum profundusproximal ¾ of medial and anterior surfaces of
    ulna and interosseous membrane
  57. 57Insertion of flexor digitorum profundusbases of distal phalanges of medial 4 digits
  58. 58Action of flexor digitorum profundusflexes the distal phalanges of the 2nd to 5th
    digits after the sublimis has flexed the middle phalanges
  59. 59tendons pass posterior to the tendons of the flexor digitorum superficialis and the flexor retinaculum T or FTrue
  60. 60Nerve Supply Nerve Roots and Blood Supply of flexor digitorum profundusLateral Part: Median Nerve
    Medial Part: Ulnar Nerve
    - C8,T1
    - Anterior interosseous artery, muscular branch of Ulnar Artery
  61. 61lies lateral to the flexor digitorum profundus where it clothes the anterior aspect of the radius - passes deep to the flexor retinaculum, enveloped in its own synovial sheathflexor pollicis longus
  62. 62Origin of flexor pollicis longusanterior surface of radius and adjacent
    interosseous membrane
  63. 63Insertion of flexor pollicis longusbase of distal phalanx of thumb
  64. 64Action of flexor pollicis longusflexes distal phalanx of thumb and secondarily
    the proximal phalanx and 1st metacarpal bone
  65. 65Nerve Supply Nerve Roots and Blood Supply of flexor pollicis longusMedian Nerve - C8, T1 - Anterior interosseous artery
  66. 66-only muscle that flexes the interphalangeal joint of the thumb - also flexes the metacarpophalangeal joint and carpometacarpal joints of the thumb - assists in wrist flexionflexor pollicis longus
  67. 67- quadrangular muscle - deepest muscle in the anterior aspect of the forearm - clothes the distal 4th of the radius and ulnapronator quadratus
  68. 68Origin of pronator quadratusdistal 4th of anterior surface of ulna
  69. 69Insertion of pronator quadratusdistal 4th of anterior surface of radius
  70. 70Action of pronator quadratuspronates forearm at the superior and inferior
    radioulnar joints
  71. 71Nerve Supply Nerve Roots and Blood Supply of pronator quadratusMedian Nerve - C8,T1 - Anterior interosseous artery
  72. 72- prime mover in the pronation of the forearm - initiates pronation and assisted by the pronator teres when more speed and power are needed - deep fibers bind ulna and radius togetherpronator quadratus
  73. 73partially overlapped by the brachioradialis with which it is often blendedextensor carpi radialis longus
  74. 74Origin of extensor carpi radialis longuslateral supracondylar ridge of humerus
  75. 75Insertion of extensor carpi radialis longusbase of 2nd metacarpal bone
  76. 76Action of extensor carpi radialis longusextend and abduct the hand at the wrist joint
  77. 77Nerve Supply Nerve Roots and Blood Supply of extensor carpi radialis longusRadial Nerve - C6,7 - Radial artery, radial recurrent artery
  78. 78act together with the extensor carpi radialis longus to steady the wrist during flexion of the medial 4 digitsextensor carpi radialis brevis
  79. 79Origin of extensor carpi radialis brevisLateral epicondyle of the humerus
  80. 80Insertion of extensor carpi radialis brevisbase of 3rd metacarpal bone
  81. 81Action of extensor carpi radialis brevisextend and abduct hand at wrist joint
  82. 82Nerve Supply Nerve Roots and Blood Supply of extensor carpi radialis brevisDeep branch of radial nerve - C7,8 - Radial artery, radial recurrent artery
  83. 83- principal extensor of the medial 4 digits - occupies much of the posterior surface of the forearmextensor digitorum
  84. 84divides into 4 tendons proximal to the wrist which pass through a common synovial sheath, deep to the extensor retinaculumextensor digitorum
  85. 85Origin of extensor digitorumlateral epicondyle of humerus
  86. 86Insertion of extensor digitorumextensor expansion of medial 4 digits
  87. 87Action of extensor digitorumextends medial 4 digits at MCP joints; extends
    hand at wrist joint; through its collateral reinforcements,
    extends the middle and distal phalanges
  88. 88Nerve Supply Nerve Roots and Blood Supply of extensor digitorumDeep branch of radial nerve - C7,8 - Posterior interosseous artery
  89. 89Extensor/Dorsal/Posterior Superficial Groupbrachioradialis
    extensor carpi radialis longus
    extensor carpi radialis brevis
    extensor digitorum
    extensor digiti minimi
    extensor carpi ulnaris
    anconeus
  90. 90Extensor/Dorsal/Posterior Deep Groupabductor pollicis longus
    extensor pollicis brevis
    extensor pollicis longus
    extensor indicis
    supinator
  91. 91a partially detached part of the extensor digitorumextensor digiti minimi
  92. 92its tendon runs through a separate compartment in the extensor retinaculum and then divides into 2 slips; the lateral one is joined to the tendon of the extensor digitorumextensor digiti minimi
  93. 93Origin of extensor digiti minimilateral epicondyle of humerus
  94. 94Insertion of extensor digiti minimiextensor expansion of 5th digit
  95. 95Action of extensor digiti minimiextends digit 5 at MCP and IP joints;
  96. 96Nerve Supply Nerve Roots and Blood Supply of extensor digiti minimiDeep branch of radial nerve - C7,8 - Posterior interosseous artery
  97. 97has 2 heads - its tendon runs in a groove between the head and styloid process of the ulna within a special compartment of the extensor retinaculumextensor carpi ulnaris
  98. 98Origin of extensor carpi ulnarislateral epicondyle of humerus and posterior
    border of ulna
  99. 99Insertion of extensor carpi ulnarisbase of 5th metacarpal
  100. 100Action of extensor carpi ulnarisextends and adducts hand at wrist joint
  101. 101Nerve Supply Nerve Roots and Blood Supply of extensor carpi ulnarisDeep branch of radial nerve - C7,8 - Posterior interosseous artery
  102. 102part of the triceps and does not actually belong to the posterior fascial compartment of the forearm, but for convenience and as is the custom , it is listed with itanconeus
  103. 103consists of 3 muscles that act on the thumb (abductor pollicis longus, extensor pollicis brevis, extensor pollicis longus) and the extensor indicis which help to extend the 2nd digitDeep Group
  104. 104Boundaries: - anterior - abductor pollicis longus and extensor pollicis brevis - posterior - tendon of extensor pollicis longus - floor – scaphoid and trapeziumanatomical snuff box
  105. 105most frequently fractured carpal bone - injury to this results in localized tenderness in the snuff boxscaphoid
  106. 106lies just distal to the supinator muscle and is closely related to the extensor pollicis brevisabductor pollicis longus
  107. 107- acts with the abductor pollicis brevis during abduction of the thumb and with the extensor pollicis during extension of this digitabductor pollicis longus
  108. 108its tendon passes deep to the extensor retinaculum in a common synovial sheath with the tendon of the extensor pollicis brevisabductor pollicis longus
  109. 109Origin of abductor pollicis longusposterior surface of ulna and radius, and
    interosseous membrane
  110. 110Insertion of abductor pollicis longusbase of 1st metacarpal bone
  111. 111Action of abductor pollicis longusabducts thumb and extends it at
    carpometacarpal joint
  112. 112acts with the abductor pollicis brevis during abduction of the thumb and with the extensor pollicis during extension of this digitabductor pollicis longus
  113. 113its tendon passes deep to the extensor retinaculum in a common synovial sheath with the tendon of the extensor pollicis brevisabductor pollicis longus
  114. 114Nerve Supply Nerve Roots and Blood Supply of abductor pollicis longusDeep branch of radial nerve - C7,8 - Posterior interosseous artery
  115. 115- lies distal to the long abductor of the thumb and is partly covered with itextensor pollicis brevis
  116. 116Origin of extensor pollicis brevisposterior surface of radius and interosseous
    membrane
  117. 117Insertion of extensor pollicis brevisbase of proximal phalanx of thumb
  118. 118Action of extensor pollicis brevisextends proximal phalanx of thumb at
    carpometacarpal joint
  119. 119- helps to extend distal phalanx - in continued action, it helps to extend the metacarpal bone of the thumb - helps to extend and abduct handextensor pollicis brevis
  120. 120- adducts the extended thumb and rotates it laterally; can also abduct handextensor pollicis longus
  121. 121Origin of extensor pollicis longusposterior surface of middle third of ulna and
    interosseous membrane
  122. 122Insertion of extensor pollicis longusbase of distal phalanx of thumb
  123. 123Action of extensor pollicis longusextends distal phalanx of thumb at MCP and IP joints
  124. 124Nerve Supply Nerve Roots and Blood Supply of extensor pollicis longusDeep branch of radial nerve - C7,8 - Posterior interosseous artery
  125. 125- lies medial and alongside the extensor pollicis longusextensor indicis
  126. 126Origin of extensor indicisposterior surface of ulna and interosseous membrane
  127. 127Insertion of extensor indicisextensor expansion of second digit
  128. 128Action of extensor indicisextends digit 2 and helps to extend hand
    - acting with extensor digitorum ,
    it extends the
    finger at the proximal IP join

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Hard Anatomy Flashcards on Anatomy-Antebrachium, created by Jerrick Gencianeo on 24/10/2020.
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