ventricle

kammio

aivokammio puhekieltä Any small cavity within a body; a hollow part or organ, especially:
puhekieltä One of two lower chambers of the heart.
puhekieltä One of four cavity cavities in the brain.
puhekieltä The stomach.
1662, w:Henry More|Henry More, s:An Antidote Against Atheism|An Antidote Against Atheism, Book II, A Collection of Several Philosophical Writings of Dr. Henry More, p. 72:

On birds "Where omitting the more general Properties, of having two Ventricles, and picking up stones to conveigh them into their second Ventricle, the Gizzern, (which provision and instinct is a supply for the want of teeth;) (�)"