Arachnoid mater - Wikipedia
The arachnoid mater (or simply arachnoid) is one of the three meninges, the protective membranes that cover the brain and spinal cord. It is so named because of its resemblance to …
The Meninges - Dura - Arachnoid - Pia - TeachMeAnatomy
Nov 6, 2025 · The arachnoid mater is the middle layer of the meninges, lying directly underneath the dura mater. It consists of layers of connective tissue, is avascular, and does not receive …
Arachnoid - e-Anatomy - IMAIOS
It envelops the brain and spinal cord, forming a delicate and transparent membrane. Unlike the dura mater, the arachnoid doesn't follow the contours of the brain's grooves, except at specific …
Arachnoid Cyst: What It Is, Causes, Symptoms & Treatment
Sep 18, 2025 · An arachnoid cyst is a noncancerous fluid-filled sac that grows on your brain or spinal cord. Most of the time, it’s something you were born with. It’s rare to cause symptoms or …
Arachnoid Brain Layer: Function, Disorders, and Clinical ...
Sep 30, 2024 · The arachnoid layer, along with the other meninges, forms part of the blood-brain barrier. This selective fortress keeps harmful substances out of the brain while allowing …
Arachnoid mater: Anatomy and function | Kenhub
Feb 15, 2024 · The arachnoid mater is the middle layer of the meninges enveloping the brain and spinal cord. It lies closely against the dura mater, however, it is not attached to it.
Arachnoiditis Symptoms, Causes, and Treatments - WebMD
Sep 10, 2024 · Arachnoiditis is a pain disorder that develops when the arachnoid becomes inflamed. It is characterized by severe stinging, burning pain, and neurological problems.