Not exactly, they are the upper chambers of the heart, but inside, not "on top of".
right atrium and left atrium
Left atrium and right atrium.
Aorta tops the heart, but if you are looking for the elements of the heart itself that are situated higher but IN the heart, then it's left atrium and right atrium.
The upper two chambers of the heart are the right atrium or auricle, and the left atrium or auricle.
Left atrium .
The Atria and Atrium
The sternum is anterior to the heart (in front of the heart). It may also be called superficial or ventral to the heart.
An atrium is in the heart, it is the top two chamber of the heart. the right atrium deals with deoxygenated blood from the body, whereas the left atrium deals with oxygenated blood from the lungs.
The right atrium is where the blood enters the heart.
There are four chambers in the heart: left atrium, right atrium, left ventricle and right ventricle. The left atrium is on the top left hand side of the heart where the vena cave and the pulmonary artery and joint to.
There are two chambers at the top. There is one above each ventricle. They have been given the name atrium which means a room that leads to a larger room. The one on the right side of the heart is called the right atrium and the other is the left atrium. The ventricles are called the left and right ventricles.
The right atrium is a region of the heart. In a human, it is on the top right side of the heart.