In the central nervous system, there are three different layers that cover the spinal cord and brain. These are called the meninges, and their three levels consist of the: pia, arachnoid, and dura mater. Bone is situated above these layers, followed by periosteum (a fibrous membrane that covers bone) and skin.The dura mater is the top layer of the meninges, lying beneath the bone tissue.This material at times opens into sinus cavities (spaces) located around the skull.he dura mater is the top layer of the meninges, lying beneath the bone tissue. This material at times opens into sinus cavities (spaces) located around the skull.
Planet Earth Making Mountains Planet Earth filmmakers came out in the rugged mountains of Nepal in hopes of filming the elusive snow leopard for the Mountains episode. 01:51.
AIFF is proud to be hosting the US Premiere of âSugar Mountainâ as the Opening Night film for the 16th annual film festival. This film was the last of its kind produced in Alaska under the former film industry tax incentive program, and features extraordinary scenery of Alaska! Sugar Mountain tells the story of two brothers, down on their luck, who fake a disappearance in the Alaskan wilderness so theyâll have a great survival story to sell, but the hoax turns out to be more real than they planned.