Final answer:
The atria of the heart, including both the right atrium and the left atrium, are the chambers that receive blood. They collect blood from the systemic circulation and the lungs before it is pumped out by the ventricles.
Step-by-step explanation:
The areas of the heart that function to receive blood are known as the atria (singular, atrium). There are two atria in the heart: the right atrium and the left atrium. The right atrium receives oxygen-poor blood from the systemic circulation, which includes the body's major veins such as the superior and inferior venae cavae as well as the coronary sinus.
The left atrium receives oxygen-rich blood from the lungs through the pulmonary veins. Conversely, the ventricles, comprising the left ventricle and the right ventricle, are the chambers that pump blood out of the heart to the lungs and rest of the body, respectively.
In summary, the correct option, indicating the heart chambers that receive blood, would refer to the atria. Please mention correct option in final answer: the atria are the chambers that receive blood.