Wrist Anatomy

Aka: Wrist Anatomy, Wrist, Carpal Bone, Triangular Fibrocartilage Complex, TFCC

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II. Anatomy: Bones and Ligaments

  1. orthoAnteriorBoneForearm.jpg Also available as a Poster size image. See printing instructions and image restrictions.
  2. orthoPosteriorBoneForearm.jpg Also available as a Poster size image. See printing instructions and image restrictions.
  3. WristCarpalBones.gif
  4. orthoArmWristJointGrayBB334.gif Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  5. orthoArmWristJointGrayBB335.gif Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  6. orthoArmWristJointGrayBB336.gif Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)

III. Anatomy: Muscles

  1. orthoArmWristXsGrayBB422.gif Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)

IV. Anatomy: Bones

  1. Scaphoid Bone
  2. Lunate Bone
  3. Triquetral Bone
  4. Pisiform Bone
  5. Trapezium Bone
  6. Trapezoid Bone
  7. Capitate Bone
  8. Hamate Bone

V. Anatomy: Wrist Bones Mnemonic

  1. General
    1. Two rows of 4 Carpal Bones each (8 total)
    2. Carpal Bones are strongly linked to one another by ligaments
  2. Proximal Row (Radial to ulnar wrist)
    1. Scaphoid or Carpal Navicular (Some)
      1. Links proximal to distal carpal row
    2. Lunate (Lovers)
    3. Triquetral (Try)
    4. Pisiform (Positions)
  3. Distal Row (Radial to ulnar wrist)
    1. Trapezium/Greater multangular (That)
    2. Trapezoid/Lesser multangular (They)
    3. Capitate (Can't)
    4. Hamate (Handle)

VI. Anatomy: Other Wrist Structures

  1. Carpal Tunnel
    1. See Carpal Tunnel Syndrome
    2. Finite space bordered by transverse carpal ligament (Flexor Retinaculum)
    3. Components of Carpal Tunnel
      1. Finger flexors (9 tendons) course through tunnel
      2. Median Nerve
  2. Triangular Fibrocartilage Complex (TFCC)
    1. Articular disc
    2. Divides ulna from proximal carpal row
    3. Injured in Triangular Fibrocartilage Complex Injury

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