Question

a bundle of spinal nerves and nerve roots that extend from the end of the spinal cord, typically at the level of the first or second lumbar vertebra, down to the coccyx is known as what? filum terminale conus medullaris dorsal root cauda equina

Explanation:

• Filum terminale: It is a non - neural fibrous cord, not a bundle of spinal nerves and nerve roots.
• Conus medullaris: It is the terminal end of the spinal cord itself, not the bundle of nerves extending from it.
• Dorsal root: It is a single root (sensory) of a spinal nerve, not a bundle extending from the end of the spinal cord to the coccyx.
• Cauda equina: This is exactly the bundle of spinal nerves and nerve roots that extends from the end of the spinal cord (usually at the level of the first or second lumbar vertebra) down to the coccyx.

Answer:

Cauda equina