What is the function of the spinal meninges?

The spinal meninges play a crucial role in the protection of the spinal cord and spinal nerves. Comprising three distinct layers—the dura mater, arachnoid mater, and pia mater—these membranes provide a protective barrier, safeguarding the central nervous system (CNS) from physical trauma and injury.

Additionally, the meninges help to contain and circulate cerebrospinal fluid (CSF), which further cushions the spinal cord and nerve roots, delivering nutrients and removing waste. This protective function is essential for maintaining the integrity of the nervous system and ensuring it operates effectively.

The other options, while related to the spinal cord and its supporting structures, do not capture the primary function attributed to the spinal meninges. The focus of this structure is specifically on protection, which underscores its vital significance within the central nervous system framework.