The intracranial ventricles are anatomical interconnected cavities where the cerebrospinal fluid flows through.
The ventricular system is composed by the four well known cavities:
The two lateral ventricles
The third ventricle
The fourth ventricle.
Cerebrospinal fluid (CSF) pathway studies have revealed that the CSF secreted from the choroid plexus of the ventricles after egressing from the fourth ventricle reaches the basal suprasellar cistern and ultimately the sylvian cisterns.