Asked by Santiago Saguir on Jul 27, 2024

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The conus medullaris

A) anchors the spinal cord to the coccyx.
B) is a tapered, cone like region immediately inferior to the lumbar enlargement.
C) marks the exit of nerves to the upper extremity.
D) is located adjacent to the foramen magnum.
E) is inferior to the cauda equina.

Conus Medullaris

The tapered, lower end of the spinal cord, occurring around the lumbar vertebral levels 1 (L1) to 2 (L2).

Lumbar Enlargement

A widened area of the spinal cord that gives rise to nerves which innervate the lower limbs.

Cauda Equina

A bundle of spinal nerves and spinal nerve rootlets at the lower end of the spinal cord, resembling a horse's tail.

  • Recognize the anatomy of the spinal cord, including the conus medullaris and the attachments anchoring the spinal cord.
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AS
Alyssa SkeldingJul 31, 2024
Final Answer :
B
Explanation :
The conus medullaris is the tapered, cone-like lower end of the spinal cord, located immediately inferior to the lumbar enlargement. It marks the official "end" of the spinal cord proper before transitioning into the cauda equina.