Which system moves blood around the body?

• A. Cardiovascular System
• B. Digestive System
• C. Endocrine System
• D. Nervous System

Answer: (A)

The system that moves blood around the body is the cardiovascular system. It includes the heart, which acts as a pump, and the network of blood vessels—arteries, veins, and capillaries—that carry blood to every part of the body and back to the heart. This circulation brings oxygen and nutrients to tissues and removes carbon dioxide and other wastes.

The digestive system handles breaking down food and absorbing nutrients, but it does not transport blood. The endocrine system releases hormones to regulate many body processes, and the nervous system coordinates and controls body functions, including heart rate, but the actual transport of blood through the body is accomplished by the cardiovascular system.