True or False? The right side of the heart pumps deoxygenated blood to the lungs, while the left side sends oxygenated blood to the rest of the body.

The statement is true because it accurately describes the fundamental functioning of the human heart in relation to the circulatory system. The right side of the heart receives deoxygenated blood from the body and pumps it to the lungs through the pulmonary circulation. In the lungs, the blood picks up oxygen and releases carbon dioxide, becoming oxygenated.

Once the blood is oxygenated, it returns to the left side of the heart, which then pumps it out to the rest of the body through the systemic circulation. This division of labor between the two sides of the heart is essential for maintaining effective blood circulation and ensuring that oxygen reaches the tissues that need it.

In this context, the other options do not apply. The heart functions in this manner consistently, regardless of whether the body is at rest or during physical activity, so the statements regarding exercise and heart failure do not change the basic role of each side in blood circulation. Thus, the assertion made in the question is correct.