Which body system pumps blood throughout the body and is composed of the heart, veins, capillaries, and arteries?

• A. Chest Seal
• B. Circulatory System
• C. Color Vision
• D. Communication

Answer: (B)

The circulatory system, also called the cardiovascular system, is what pumps blood through the body. Its main pump is the heart, and the network of vessels includes arteries that carry blood away from the heart, veins that return it, and capillaries where exchange of oxygen, nutrients, and wastes occurs. The description in the question—heart, veins, capillaries, and arteries—matches this system perfectly, since it’s responsible for moving blood to and from every part of the body to sustain tissues and remove wastes. The other options don’t fit because they describe a device for sealing wounds, the sense of color, or the process of exchanging information, not a system that circulates blood.