What Structures Help to Anchor the Spinal Cord Within the Subarachnoid

Question

What structures help to anchor the spinal cord within the subarachnoid space?
A) Conus medullaris and pia mater
B) Denticulate ligaments and cauda equina
C) Filum terminale and denticulate ligaments
D) Filum terminale and thecal sac

Accepted Answer

The filum terminale and denticulate ligaments help anchor the spinal cord within the subarachnoid space. The filum terminale extends from the conus medullaris to the coccyx, while the denticulate ligaments are lateral extensions of the pia mater that attach to the dura mater.