What is the primary function of arteries?

The primary function of arteries is to carry oxygen-rich blood away from the heart to various tissues and organs throughout the body. This process is critical for maintaining the health and function of the body's cells, as oxygen is essential for cellular metabolism and energy production.

When the heart pumps, it sends blood into the arteries under pressure, which helps propel the blood through the vascular system. This transport system is crucial for ensuring that all parts of the body receive the oxygen and nutrients they need to function effectively. Additionally, this function of arteries contributes to the overall circulation of blood, supporting bodily functions such as immune response and thermoregulation.

In contrast to other options, arteries specifically focus on oxygenated blood distribution, while veins would carry deoxygenated blood back to the heart. This distinction emphasizes the arteries' role in delivering the necessary oxygen that is vital for survival.