Which blood vessels are responsible for carrying blood away from the heart?

The correct answer is arteries, which play a vital role in the circulatory system by carrying oxygenated blood from the heart to various tissues and organs throughout the body. When the heart pumps, blood is pushed into the arteries under high pressure, allowing it to reach distant parts of the body efficiently.

Arteries have thick, muscular walls that help withstand and regulate the high pressure of blood being pumped from the heart. This structure is essential for maintaining proper blood flow and ensuring that oxygen and nutrients are delivered effectively to the tissues that need them.

In contrast, veins are responsible for returning deoxygenated blood back to the heart, while capillaries facilitate the exchange of oxygen, carbon dioxide, and nutrients between blood and tissues. Venules are small vessels that collect blood from capillaries and converge into veins. Each of these vessels has its unique function, but the primary role of arteries is to transport blood away from the heart, which makes them the correct answer in this context.