You searched for: “arachnoid
arachnoid
1. Covered with, or formed by long, delicate, cobweb-like hairs or fibers.
2. The delicate serous membrane, or membranous sac, lining the dura mater, and enveloping the brain and spinal cord.

Like a cobweb referring to a thin membrane between two other membranes surrounding the brain and the spinal cord.

This entry is located in the following units: arachno-, arachn- + (page 2) -oid, -oidal, -oidism, -odic (page 3)
Word Entries containing the term: “arachnoid
arachnoid membrane
One of the membranes covering the brain and the spinal cord.

Arachnoiditis is the name applied to inflammation of this membrane.

This entry is located in the following unit: arachno-, arachn- + (page 2)
arachnoidal villi, arachnoid villi
In anatomy, numerous microscopic projections of the arachnoid membrane into some venous sinuses.

Villi are minute hairlike projections, or tiny finger-like or vascular projections, on the mucous membranes.