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Diagram showing the positions of the three principal subarachnoid cisternæ. (Lateral recess not labeled, but region is visible.)
|Latin||recessus lateralis ventriculi quarti|
|Anatomical terms of neuroanatomy|
The lateral aperture (Foramen of Luschka), an opening in each extremity of the lateral recess, provides a pathway for cerebrospinal fluid to flow from the brain's ventricular system into the subarachnoid space. The lateral aperture is the end point (and opening or foramen) of the lateral recess. Consider the lateral recess as a tunnel whose opening at one end is the lateral aperture.
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