II. Anatomy: Nerve Course

  1. Disc disease affects nerve exiting one level below
    1. Nerve passes over the affected disc
  2. Example
    1. L4-5 disc Herniation affects L5 nerve
    2. Contrast with C-Spine Anatomy

III. Anatomy: Components

  1. Spinal cord terminates at L1-L2 in the adult
  2. Lumbosacral nerve roots comprise cauda equina

IV. Images: Bone

  1. LumbarSpineInCrossSection.gif
  2. LumbarSpineAnatomyVertebra.gif
  3. LumbarSpineAnatomyDisc.gif
  4. orthoLegLumbarDorsalFasciaGrayBB388.gif Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  5. orthoSpineVertebraeLumbarGrayBB93.gif Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  6. orthoSpineVertebraeLumbar5GrayBB94.gif Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  7. orthoSpineVertebraeLumbarLateralXsGrayBB301.gif Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  8. orthoSpineVertebraeLumbarLateralGrayBB92.gif Lewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)

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