Lateral recess

Lateral recess
Diagram showing the positions of the three principal subarachnoid cisternæ. (Lateral recess not labeled, but region is visible.)
Details
Identifiers
Latin	recessus lateralis ventriculi quarti
NeuroNames	hier-639
*Anatomical terms of neuroanatomy* [edit on Wikidata]

Three-dimensional representation of the ventricular system of the human brain. The fourth ventricle is the lower blue mass. The little points sticking out on the left and right are the two parts of the lateral recess.

The lateral recess is a projection of the fourth ventricle which extends into the inferior cerebellar peduncle of the brainstem. The lateral aperture, an opening in each extremity of the lateral recess, provides a conduit for cerebrospinal fluid to flow from the brain's ventricular system into the subarachnoid space.

The ventricular system of the human brain

Lateral ventricles

Third ventricle

Fourth ventricle

Roof	Superior medullary velum Frenulum Inferior medullary velum Taenia

Floor	Upper Facial colliculus Locus coeruleus Lower Vagal trigone Hypoglossal trigone Area postrema Obex Medial eminence Sulcus limitans Fastigium

Apertures	Median/Magendie Lateral recess to Lateral/Luschka

Other	Rhomboid fossa Tela chorioidea

Cerebrospinal fluid

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