The Thecal Sac is Formed Around the Spinal Cord by The

Question

The thecal sac is formed around the spinal cord by the
A) Pia mater
B) Dura mater
C) Arachnoid mater

Accepted Answer

The thecal sac is formed by the dura mater, which is the outermost layer of the meninges surrounding the spinal cord.