Bundles of fiber known as ________ extend from the inner surface of the arachnoid mater to the outer surface of the pia mater.
A) arachnoid granulations
B) cauda equina
C) arachnoid trabeculae
D) subarachnoid spaces
E) denticulate ligaments

Question

Quizplus · Accepted Answer

Arachnoid trabeculae are fibers that extend from the inner surface of the arachnoid mater to the outer surface of the pia mater, helping to support and anchor the brain and spinal cord. Arachnoid granulations are small projections of the arachnoid mater into the venous sinuses, where they help to reabsorb cerebrospinal fluid. The cauda equina is a collection of spinal nerves that runs through the lumbar and sacral regions of the spinal canal. The subarachnoid space is the space between the arachnoid mater and pia mater, where cerebrospinal fluid circulates. Denticulate ligaments are triangular extensions of the pia mater that anchor the spinal cord within the vertebral canal.

Bundles of Fiber Known as ________ Extend from the Inner