Right atrium receives de-oxygenated (without oxygen) blood from the superior and inferior vena cava. The superior vena cava brings blood from the top portion of the body mainly the neck, head etc. The inferior vena cava brings blood from the lower portion of the body like the abdomen, legs etc.
Two veins return deoxygenated blood to the right atrium. The superior vena cava returns blood from the head and upper body to the right atrium. The inferior vena cava returns blood from the legs and lower body to the right atrium.
The heart is made up of four chambers. Two atria (top half) and two ventricles (bottom half) The right atrium receives unoxygenated blood from the body and pushes it into the right ventricle. The right ventricle then pumps the unoxygenated blood to the lungs where it is oxygenated. The left atrium then receives this newly oxygenated blood from the lungs and pushes it into the left ventricle which then sends the blood (with lots of oxygen for the body to use) to the rest of the body. The blood from the body then returns to the right atrium and the cycle starts all over again.
right atrium
right atrium
The right atrium of the heart receives oxygen-poor blood from the body.
The right atrium receives deoxygenated blood, then the blood moves into the right ventricle. So both of them receive deoxygenated blood. Once the blood returns from the lungs it is oxygenated and comes into the heart through the pulmonary veins into the left atrium then to the left ventricle then out to the body.
The left atrium of the heart receives oxygented blood from the pulmonary veins returning oxygenated blood to the heart.
Both. The right atrium receives deoxygenated blood from the veins of the body; the left atrium receives oxygenated blood from the pulmonary vein.
Atrium
Right ventricle
The right atrium receives blood from the systemic circulation. It then assists in filling the right ventricle.
The left atrium receives oxygenated blood from the pulmonary vein.