The blood comes from the vena cava into the right atrium,into the right ventriclethrough the atrioventricular valve (tricuspid valve). From the right ventricle the blood goes through the semilunar valves, entering the lungs through the pulmonary arteries.
Nowhere. Red blood cells comes from bone marrow, and after not functioning (I would say dying except that blood is not alive) they are taken apart in either the spleen or the liver. The fluids diffuse in and out. The proteins are made all over but many in the liver. The hormones come from glands.
Lung
right atrium -> right ventricle -> pulmonary artery -> pulmonary vein -> left atrium -> left ventricle -> aorta
The left Ventricle pumps blood out to your body
Your blood will go to right ventricle form right atrium. You have the tricuspid valve between your right atrium and right ventricle. Then your blood will go to lungs through pulmonary aorta. Here you have pulmonary valve. Then your blood will go to left atrium via pulmonary veins. You have valves in all the veins and has got no name. Your blood goes to your left ventricle form left atrium. You have got mitral or bicuspid valve here between the two. Then your blood goes to your body via systemic aorta. Here you have aortic valve to prevent the back flow.
The left side of the heart (the left ventricle) pumps blood through aorta into systemic arteries.The right ventricle is the one in charge of pumping the venous blood into the lungs, where blood gets oxygenated and can then go to left ventricle to be pumped through systemic arteries.However, the left ventricle does also pump some blood into the lungs: aorta gives off branches (bronchial arteries) that go into lungs and supply oxygen to the cells of lung tissue.To summarize, lungs get blood from both sides of the heart. From the left ventricle, they get the blood that feeds them, and from the right ventricle they get the blood which they have to fill with oxygen.
The right ventricle pumps the blood to the lungs.
The right ventricle pumps the blood to the lungs.
right ventricle
Blood from the right ventricle goes through the pulmonic valve and then into the lungs.
From the right ventricle, the blood with flow through the pulmonary trunk and to the lungs.
right ventricle
Right ventricle
The blood then flows into to the right ventricle, and out into the pulmonary artery through the pulmonic valve.
The right ventricle empties into the pulmonary arteries which carry the deoxygenated blood to the lungs to be re-oxygenated.
In the mammalian (and avian) heart, blood passes directly from the atria into the corresponding ventricles. So blood from the right atrium next enters the right ventricle.
The heart is divided into four chambers, the right atrium and the right ventricle, and the left atrium and the left ventricle. Blood that is oxygen poor and high in carbon dioxide enters the heart through the right atrium and is then pumped out to go to the lungs via the right ventricle. The left atrium then pumps the newly oxygenated blood into the left ventricle, which then sends the blood to all parts of the body. So, in short, the right ventricle pumps oxygen poor blood to the lungs and the left ventricle pumps oxygen rich blood to the whole body.
Lung