D001099Level 5

Arachnoid

**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.

**Tree numbers:** - A08.186.566.166

**Synonyms:** - Arachnoid Mater

GET/api/v1/systems/mesh/nodes/D001099

Official DownloadPublic Domain (US Government)Source

Hierarchy Explorer

Hierarchy ExplorerChevron to expand - click title to open

D013346Subarachnoid Space

Cross-system equivalences0

No cross-system equivalences mapped for this node.

Report a data issue