Fluid-filled cavity in hay. and we. cerebrum hemisphere. Each lateral ventricle is connected to the 3rd cerebral ventricle through a hole (foramen interventriculare).
A lateral ventricle is divided into four sections. At the front is the frontal lobe (cornu frontale ventr. lat.) which merges posteriorly into the middle part of the lateral ventricle (pars centralis ventr. lat.). The central part transitions backwards into two spaces, a occipital lobe (cornu occipitale ventr. lat.) and a temporal lobe section (cornu temporale ventr. lat.) that turns downwards and forwards into the temporal lobe.
The middle part and temporal lobe contain a contiguous elongated blood vessel/chorodial braid that produces cerebrospinal fluid (liquor cerebrospinalis).