The two upper parts of the heart that receive blood from the body are called the left and right Atrium
Step-by-step explanation:
The two upper chambers of the heart that receive blood through the ventricles in the body are called Atrium. The human heart is as big as your fist. It is divided into four ventricles: the left and right atria and the right and left ventricles. It is surrounded by a double-walled sac called pericardium.
The right auricle receives oxygen-deficient blood from the upper and lower veins. The left auricle piercing receives pulmonary veins containing high levels of oxygen. The atrium contract to draw blood into the ventricle.