Definition
In an adult the dural sac terminates caudally at S2. The termination of the adult spinal cord, on the other hand, is at L1-2 and is called the conus medullaris.
In newborns the dura mater ends at S3, and the conus medullaris at L3. This changes over the first year of life.
Spinal Anatomy (Adults)
- Dural Sac: S2
- Spinal cord: L2 (conus medullaris)
Spinal Anatomy (Newborns)
- Dural Sac: S3
- Spinal cord: L3 (conus medullaris)
Subspecialty
Related Media
Keyword history
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See Also:
Sources
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Morgan GE, Jr., Mikhail MS, Murray MJ, “Chapter 16. Spinal, Epidural, and Caudal Blocks” (Chapter). Morgan GE, Jr., Mikhail MS, Murray MJ: Clinical Anesthesiology, 4e
