The walls of the ventricles are thicker than those of the auricles, and the walls of the left ventricle are much thicker than those of the right.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
The upper compartments are called auricles and the lower ones ventricles.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
The two chambers of the heart that receive blood from the auricles and force it into the arteries.
"A Handbook of Health"
Woods Hutchinson