Arachnoid membranes

Last revised by Joshua Liu on 25 Mar 2022

Citation, DOI, disclosures and article data

Citation:

Gaillard F, Liu J, Arachnoid membranes. Reference article, Radiopaedia.org (Accessed on 19 Apr 2024) https://doi.org/10.53347/rID-68135

DOI:

https://doi.org/10.53347/rID-68135

Permalink:

https://radiopaedia.org/articles/68135

rID:

68135

Article created:

14 May 2019, Frank Gaillard ◉ ◈

Disclosures:

At the time the article was created Frank Gaillard had no recorded disclosures.

View Frank Gaillard's current disclosures

Last revised:

25 Mar 2022, Joshua Liu

Disclosures:

At the time the article was last revised Joshua Liu had no recorded disclosures.

View Joshua Liu's current disclosures

Revisions:

3 times, by 2 contributors - see full revision history and disclosures

Systems:

Central Nervous System

Sections:

Anatomy

Arachnoid membranes represent sheet-like connective tissue that crosses the subarachnoid space, from the pia mater to the arachnoid mater, dividing the subarachnoid space into cisterns. A number of these membranes are named ¹:

Liliequist membrane: separates the chiasmatic cistern and interpeduncular cistern
anterior pontine membranes: separate the prepontine cistern (midline) from the cerebellopontine cisterns (laterally)
lateral pontomesencephalic membranes: separate the ambient cisterns from the cerebellopontine cisterns
medial pontomedullary membrane: separates the premedullary cistern from the prepontine cisterns
lateral pontomedullary membranes: separate the cerebellopontine cistern from the cerebellomedullary cisterns