FTP identify this membrane also known as the pachymeninx, whose thickness led to its Arabic name, al-jaalfiya, which, like the Latinate name by which it is better known, means "hard mother".
This membrane surrounds and supports the large venous channels or "sinuses" named for it and is prolonged into seven septa, including the falx cerebri, the falx cerebelli, and the tentorium cerebelli. It functions as the periosteum of the skull's inner surface and is fused with the arachnoind meninx at the so-called arachnoid villi or granulations, which are involved with the movement of cerebrospinal fluid. FTP identify this membrane also known as the pachymeninx, whose thickness led to its Arabic name, al-jaalfiya, which, like the Latinate name by which it is better known, means "hard mother".
This membrane surrounds and supports the large venous channels or "sinuses" named for it and is prolonged into seven septa, including the falx cerebri, the falx cerebelli, and the tentorium cerebelli.
dura mater (accept pachymeninx before it's mentioned)