selkäydinkalvojen
Selkäydinkalvot, also known as meninges, are the protective membranes that surround the brain and spinal cord. They consist of three layers: the dura mater, the arachnoid mater, and the pia mater. The dura mater is the outermost and toughest layer, providing a robust barrier. Beneath it lies the arachnoid mater, a delicate, web-like membrane. The innermost layer is the pia mater, which is thin and closely adheres to the surface of the spinal cord and brain.
These membranes play a crucial role in protecting the central nervous system from injury. They also house