How does the cardio vascular system work?
The main components of the cardiovascular system are the heart, blood vessels, and blood. Each part plays an important role in how the cardiovascular system works. For example, the heart’s job is to pump blood through a network of blood vessels. These vessels form a loop, which starts at the heart, goes out through your body, and then ends back at the heart again. Blood flows throughout your entire body, carrying oxygen and nutrients to all of your cells and taking away the waste products that they produce.
