What type of veins carry blood from the lungs to the heart?

Pulmonary veins are responsible for carrying oxygenated blood from the lungs back to the heart. After blood is oxygenated in the lungs during respiration, it enters these veins, which transport it to the left atrium of the heart. This is a critical step in the circulatory process, as it allows the heart to pump oxygen-rich blood to the rest of the body, supporting cellular metabolism and overall function.

In contrast, pulmonary arteries carry deoxygenated blood from the heart to the lungs, where it can release carbon dioxide and pick up fresh oxygen. Caval veins typically refer to the superior and inferior vena cavae, which bring deoxygenated blood from the body back to the heart. Coronary veins, on the other hand, collect deoxygenated blood from the heart muscle itself and return it to the right atrium. Thus, among the options provided, pulmonary veins specifically function in the transport of blood from the lungs to the heart, highlighting their important role in the circulatory system.