Certified Tumor Registrar (CTR) Practice Exam

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What is the typical function of arteries in the circulatory system?

Transporting oxygenated blood
Transporting deoxygenated blood
Filtering blood
Storing blood

The correct answer is: Transporting oxygenated blood

The typical function of arteries in the circulatory system is to transport oxygenated blood from the heart to various tissues and organs throughout the body. This transportation is crucial as oxygen is a vital component for cellular respiration, which is how cells produce energy. The arteries are specifically designed to handle this task, characterized by thick, muscular walls that can withstand the high pressure of blood being pumped directly from the heart. In terms of respiratory processes, oxygen-rich blood is carried by arteries following its oxygenation in the lungs, while the heart pumps this oxygenated blood to the rest of the body. This ensures that all organs and tissues receive the necessary oxygen to function effectively. In contrast, veins are responsible for transporting deoxygenated blood back to the heart. While filtering blood is a function associated with organs like the kidneys, and blood storage is primarily related to veins and organs like the spleen, the primary role of arteries specifically focuses on the distribution of oxygenated blood from the heart. Therefore, the correct choice accurately reflects this fundamental aspect of cardiovascular physiology.