MeSH definition : A delicate membrane enveloping the brain and spinal cord. It lies between the PIA
MATER and the DURA MATER. It is separated from the pia mater by the subarachnoid cavity
which is filled with CEREBROSPINAL FLUID.;
A delicate membrane enveloping the brain and spinal cord. It lies between the PIA
MATER and the DURA MATER. It is separated from the pia mater by the subarachnoid cavity
which is filled with CEREBROSPINAL FLUID.
https://campus.neurochirurgie.fr/article1748.html 2023 France audiovisual aids anatomist arachnoiditis, nos arachnoid Arachnoiditis anatomy