The top left position of the ventricular heart on the left side and a small heart. Compared with other heart In the upper-left ventricular blood of oxygen from the lungs, which was sent by artery.
Left atrial chamber of the heart on the left. Back to top And a smaller one with a heart. Compared with other left atrial heart chamber to keep the blood with oxygen from the lungs. Transmitted through the arteries.
The left atrium of the heart position on left at the back end and a chamber with the smallest size. Compared with other heart left atrium to wait for the oxygenated blood from the lungs. Which sent through the arteries.