Posterior perimesencephalic membrane
Membrana perimesencephalica posterioris
Definition
The posterior perimesencephalic membrane is a paired membrane surrounding the midbrain tegmentum and part of the pulvinar. Posteromedially, it extends upward and ends at the arachnoid envelope surrounding the vein of Galen to form the lateral wall of the quadrigeminal cistern.
References
Lü J, Zhu XL. Characteristics of distribution and configuration of intracranial arachnoid membranes. Surg Radiol Anat. 2005 Dec;27(6):472-81. doi: 10.1007/s00276-005-0025-4. Epub 2005 Sep 8. PMID: 16151970.
