Which term refers to the system that moves blood within the body, carrying nutrients and oxygen, and helps regulate body temperature?

Which term refers to the system that moves blood within the body, carrying nutrients and oxygen, and helps regulate body temperature?

• A. Arteries
• B. Veins
• C. Cardiovascular system
• D. Capillaries

Answer: (C)

The cardiovascular system is responsible for moving blood through the body, delivering oxygen and nutrients to tissues and helping regulate body temperature. It includes the heart as the pump and the blood vessels that carry blood—the arteries transport blood away from the heart, veins return it, and capillaries are small exchange sites. While those vessels are essential parts of the system, the term that best describes the entire network and its role in circulation and temperature regulation is the cardiovascular system.

The cardiovascular system is responsible for moving blood through the body, delivering oxygen and nutrients to tissues and helping regulate body temperature. It includes the heart as the pump and the blood vessels that carry blood—the arteries transport blood away from the heart, veins return it, and capillaries are small exchange sites. While those vessels are essential parts of the system, the term that best describes the entire network and its role in circulation and temperature regulation is the cardiovascular system.