ventricle

US /ˈven.trɪ.kəl/
UK /ˈven.trɪ.kəl/
"ventricle" picture
1.

a hollow part or cavity in an organ, in particular a ventricle of the heart or brain.

:
The right ventricle pumps deoxygenated blood to the lungs.
Cerebrospinal fluid fills the ventricles of the brain.