Body of lateral ventricle
Pars centralis ventriculi lateralis
- Synonym: Central part of lateral ventricle
- Related terms: Central part; Central part of lateral ventricle; Body of lateral ventricle
Definition
The body of lateral ventricle is the central portion of each lateral ventricle. It extends posteriorly from the interventricular foramen of Monro to the atrium, where the ventricular cavity continues into the temporal and occipital horns.
Boundaries
The principal boundaries of the body of lateral ventricle are:
Roof: body of the corpus callosum
Floor: thalamus, and caudate nucleus
Superomedial wall: septum pellucidum (superomedially), and body of fornix (inferomedially)
Lateral wall: The floor continues as the lateral wall, hence, formed by (thalamus and) caudate nucleus
Along the floor and the lateral wall, the groove between the caudate nucleus and thalamus contains the stria terminalis and thalamostriate vein.
Posteriorly, the body communicates with the atrium of the lateral ventricle, near the region of the corpus callosum and the psalterium (posterior hippocampal commissure) of the fornix.
References
Scelsi CL, Rahim TA, Morris JA, Kramer GJ, Gilbert BC, Forseen SE. The Lateral Ventricles: A Detailed Review of Anatomy, Development, and Anatomic Variations. AJNR Am J Neuroradiol. 2020 Apr;41(4):566-572.
