Interpeduncular cistern

Brain: Interpeduncular cistern
Diagram showing the positions of the three principal subarachnoid cisternæ. (Interpeduncular cistern labeled at left center.)
Latin cisterna interpeduncularis, cisterna basalis
Gray's subject #193 876

The interpeduncular cistern (basal cistern or Fossa interpeduncularis) is a wide cavity where the arachnoid extends across between the two temporal lobes.

It encloses the cerebral peduncles and the structures contained in the interpeduncular fossa, and contains the arterial circle of Willis.

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.