Which system includes the heart and blood vessels and is responsible for transporting blood?

Which system includes the heart and blood vessels and is responsible for transporting blood?

• A. Cardiovascular
• B. Digestive
• C. Nervous
• D. Lymphatic

Answer: (A)

The cardiovascular system is the body's transport network for blood, built around the heart and the blood vessels. The heart acts as the pump that pushes blood into arteries, which carry it away from the heart, through a network of capillaries where oxygen and nutrients are exchanged, and then back through veins to complete the loop. This system enables blood to travel to the lungs for oxygenation (pulmonary circuit) and to the rest of the body to deliver oxygen and nutrients and remove wastes (systemic circuit). While other systems handle digestion, nerve coordination, or lymphatic fluid, the cardiovascular system is specifically responsible for moving blood throughout the body.

The cardiovascular system is the body's transport network for blood, built around the heart and the blood vessels. The heart acts as the pump that pushes blood into arteries, which carry it away from the heart, through a network of capillaries where oxygen and nutrients are exchanged, and then back through veins to complete the loop. This system enables blood to travel to the lungs for oxygenation (pulmonary circuit) and to the rest of the body to deliver oxygen and nutrients and remove wastes (systemic circuit). While other systems handle digestion, nerve coordination, or lymphatic fluid, the cardiovascular system is specifically responsible for moving blood throughout the body.