What system is identified as consisting of the heart and blood vessels?

The cardiovascular system is defined as comprising the heart and blood vessels, which work collaboratively to circulate blood throughout the body. This circulation is critical as it delivers oxygen and nutrients to tissues while also removing waste products like carbon dioxide. The heart acts as the central pump, propelling blood through a network of arteries, veins, and capillaries. This system not only facilitates respiration and metabolism in tissues but also plays a vital role in regulating body temperature and pH levels. The effectiveness of the cardiovascular system is essential for overall health, as any disruption can lead to a variety of medical conditions. Understanding this system's components and functions is fundamental to emergency care, as many life-threatening situations involve cardiovascular compromise.