right atrium
the heart
The right chamber pumps blood to the lungs to get oxygen.
The left atrium is the chamber that receives oxygenated blood returning from the lungs.
Valves prevent the flow of blood into the wrong chamber or its backflow.
Blood returning from the body systemic circulation first enters which chamber of the heart?
The left ventricle is the heart chamber that pumps the blood through the aorta to the rest of the body.
Heart blood vessels is what collects blood and pumps it to the lower chamber. This is what keeps the heart in working function.
The left ventricle pumps oxygenated blood into the aorta, one of the first side branches of the aorta are the cardiac arteries that bring blood back to the heart. So no heart chamber supplies blood to the heart directly.
blood
Blood comes to the right atrium of the heart from the body.
A clot
yes