The common name for the human body's circulatory system is the cardiovascular system. This complex network is responsible for the transportation of blood, nutrients, hormones, and waste products throughout the body. The system consists primarily of the heart, blood vessels (arteries, veins, and capillaries), and blood itself. The heart serves as the central pump, propelling blood through the vessels to supply oxygen and nutrients to tissues while removing carbon dioxide and metabolic waste products. The cardiovascular system plays a crucial role in maintaining homeostasis, supporting immune function, and regulating body temperature, making it vital for overall health.