Left & right
ventricles and auricles.
(The ventricles are the bigger ones that do the actual pumping.)
A frog's heart has only three chambers, and a human's heart has four chambers.
The four chambers of the heart are the right and left atria, and the right and left ventricles. The atria are the upper chambers, and the ventricles the lower.
The upper chambers are the (left) atrium and the (right) atrium. The lower chambers are called the (left) ventricle and the (right) ventricle.
The human heart has four chambers connected by valves. We have 2 smaller chambers on the upper half of our heart and two larger chambers on the bottom of our heart. The smaller chambers are called atria; the larger chambers are called ventricles. So we refer to these chambers as right and left atrium, and right and left ventricle.
Pericardium
Valves
The heart is divided into four chambers. The two bottom heart chambers are called the ventricles. The upper chambers are the atrials.
The heart is divided into four chambers, the left atrium, the left ventricle, the right atrium, and the right ventricle. The two chambers in the upper portions of the heart are the atrium, and the two at the lower portions are the ventricles.
The human heart has four chambers. The atria are the upper chambers, and the ventricles are the lower chambers.
Yes, a human heart has four chambers. The atria are the upper chambers, and the ventricles are the lower chambers.
Yes, there are four chambers in the heart.
There are four chambers of the heart and two major regions (the base and the apex).