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2. Conus medullaris - Wikipedia

   en.wikipedia.org/wiki/Conus_medullaris

   The conus medullaris (Latin for "medullary cone") or conus terminalis is the tapered, lower end of the spinal cord. It occurs near lumbar vertebral levels 1 (L1) and 2 (L2), occasionally lower. [ 1 ] [ 2 ] The upper end of the conus medullaris is usually not well defined, however, its corresponding spinal cord segments are usually S1–S5.

3. Spinal cord injury - Wikipedia

   en.wikipedia.org/wiki/Spinal_cord_injury

   Conus medullaris syndrome is an injury to the end of the spinal cord the conus medullaris, located at about the T12–L2 vertebrae in adults. [30] This region contains the S4–S5 spinal segments, responsible for bowel, bladder, and some sexual functions, so these can be disrupted in this type of injury. [30]

4. Tethered cord syndrome - Wikipedia

   en.wikipedia.org/wiki/Tethered_cord_syndrome

   A tethered cord is often diagnosed as a "low conus". The conus medullaris (or lower termination of the spinal cord) normally terminates at or above the L1-2 disk space (where L1 is the first, or topmost lumbar vertebra). After about 3 months of age, a conus below the L1-2 disk space may indicate a tethered cord and termination below L3-4 is ...

5. Spinal cord - Wikipedia

   en.wikipedia.org/wiki/Spinal_cord

   Sectional organization of spinal cord. The spinal cord is the main pathway for information connecting the brain and peripheral nervous system. [3] [4] Much shorter than its protecting spinal column, the human spinal cord originates in the brainstem, passes through the foramen magnum, and continues through to the conus medullaris near the second lumbar vertebra before terminating in a fibrous ...

6. Cauda equina - Wikipedia

   en.wikipedia.org/wiki/Cauda_equina

   The cauda equina (from Latin tail of horse) is a bundle of spinal nerves and spinal nerve rootlets, consisting of the second through fifth lumbar nerve pairs, the first through fifth sacral nerve pairs, and the coccygeal nerve, all of which arise from the lumbar enlargement and the conus medullaris of the spinal cord.

7. Conus medullaris syndrome - Wikipedia

   en.wikipedia.org/?title=Conus_medullaris...

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8. Lumbar puncture - Wikipedia

   en.wikipedia.org/wiki/Lumbar_puncture

   The conus medullaris (bottom of the spinal cord) terminates at the level of L1 in adults, but may range in term neonates (newly born babies) from L1–L3 levels. [31] It is important to insert the spinal needle below the conus medullaris at the L3/L4 or L4/L5 interspinous levels. [32]

9. Lumbar enlargement - Wikipedia

   en.wikipedia.org/wiki/Lumbar_enlargement

   The lumbar enlargement (or lumbosacral enlargement) is a widened area of the spinal cord that gives attachment to the nerves which supply the lower limbs.. It commences about the level of T11 and ends at L2, and reaches its maximum circumference, of about 33 mm. Inferior to the lumbar enlargement is the conus medullaris.