Question

question 25
1 pts
the lower end of the spinal cord, with its attached spinal nerve roots, gives the appearance of a horses tail called the
conus medullaris.
gray commissure.
cauda equina.
filum terminale.

Explanation:

• Conus medullaris: It is the tapered end of the spinal cord itself, not the structure that looks like a horse's tail.
• Gray commissure: This is a part of the gray matter in the spinal cord that connects the two halves of the gray matter. It has no relation to the appearance of a horse's tail.
• Cauda equina: The name "cauda equina" literally means "horse's tail" in Latin. After the spinal cord tapers to the conus medullaris, the spinal nerve roots (from the lumbar, sacral, and coccygeal regions) extend downward within the vertebral canal, and their collective appearance is like a horse's tail, which is what the cauda equina is.
• Filum terminale: It is a non - nervous fibrous tissue (an extension of the pia mater) that helps anchor the spinal cord inferiorly. It does not have the appearance of a horse's tail.

Answer:

cauda equina.