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Spinal cord
Cauda equina
Spinal fusion surgery
Spinal canal
Lumbar region
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1. Identify the sticky material at the start of the video. What do you think it is? Do you think it’s surgical gel, an anatomic substance or a pathologic process (for example, pus)? Why? How would you find out?
2. What tissue layer is first cut to expose the cauda equina?
3. At what vertebral level is the cage placed (based on seeing the cauda equina)?
4. Identify nerve roots at 1:50. Do you think you’re looking at the anterior or posterior spinal cord? Why?
5. At 1:50, identify which segment of spinal cord is still covered by dura and which is free of dura.
6. At 1:50, there are blood vessels on the surface of the spinal cord. How does the spinal cord receive its blood supply?
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