There are two such chambers; they are the ventricles. The right ventricle sends blood out of the heart and to the lungs; the left ventricle sends blood out of the heart and into the body and heart muscle tissue.
right ventricle
the pulmonary artery sends blood to the lungs.
The right ventricle sends deoxygenated blood to the lungs.
The left atrium receives blood from the lungs
The pulmonary artery sends blood from the heart to the lungs, while the pulmonary vein sends blood from the lungs back into the heart. So yes, pulmonary circulation flows blood through the lungs
The Pulmonary arteries carry deoxygenated blood from the lungs to the heart.
The design of the mammalian heat is that there are two chambers used to receive blood from, and pump blood to the lungs, and then two more chambers used to received blood from, and pump blood to the rest of the body other than the lungs. This arrangement works more efficiently than if there are only two chambers receiving blood from and pumping blood to the entire body including the lungs.
The heart sends "used" blood to your lungs so that the blood can reabsorb oxygen there. There are no weasels in the lungs.
Pulmonrary Veins.
The collecting chamber of the heart is the atrium, which receives blood from the veins and sends it to the ventricles for pumping out to the lungs or body. There are two atria in the heart, one on the right side and one on the left side.
Blood starts off in the Right Atrium. At this point it is not carrying any oxygen. It is then pumped into the Right Ventricle, which sends it to the lungs. After receiving oxygen i nthe lungs the blood returns to the heart to the Left Atrium, which pumps it into the Left Ventricle, which pumps it throughout the body.