Ambient cistern

Last revised by Craig Hacking on 15 Jan 2024

The ambient cistern is part of the subarachnoid cisterns, filled with CSF.

Gross anatomy

The ambient cistern is a thin, sheet-like extension of the quadrigeminal cistern that extends laterally around the midbrain and posterior to the thalami. It acts as the connection between the quadrigeminal cistern and the interpeduncular cistern. The term "ambient cistern" may be used to refer to these connections and the quadrigeminal cistern as a whole.

Contents

It contains several vessels and nerves:

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