Question

multiple choice question
as the lumbar and sacral nerves extend inferiorly beyond the end of the spinal cord, they form the

• conus medullaris
• cauda equina
• filum terminale

Explanation:

To solve this, we recall the anatomy of the spinal cord:

• Conus medullaris is the tapered end of the spinal cord, not formed by nerves extending beyond.
• Cauda equina is a bundle of spinal nerves (lumbar and sacral) that extend inferiorly beyond the spinal cord's end, resembling a horse's tail.
• Filum terminale is a fibrous extension of the spinal cord, not a collection of nerves.

So the correct answer is the option related to the bundle of lumbar and sacral nerves extending beyond the spinal cord.

Answer:

B. cauda equina