Which chamber of the heart does blood flow into from the Vena cava?

Blood flows into the heart through the vena cava, which consists of two main veins: the superior vena cava and the inferior vena cava. Both of these veins are responsible for returning deoxygenated blood from the body to the heart. The correct answer is the right atrium, as it serves as the receiving chamber for blood coming from the vena cava. Once the deoxygenated blood enters the right atrium, it is then directed into the right ventricle, which pumps it to the lungs for oxygenation. Understanding the flow of blood through the heart is crucial for studying cardiovascular physiology, as it underpins how the heart functions in delivering oxygen and nutrients and removing waste products from the body.