Cardiovascular system is also known as:

The heart and blood vessels together make up the circulatory system. The circulatory system's major job is to provide oxygen, nutrients, and hormones to muscles, tissues, and organs all across the body. The circulatory system also removes waste from cells and organs so that our bodies can eliminate it. The heart circulates blood throughout the body via a network of arteries and veins (blood vessels). The circulatory system can also be referred to as the cardiovascular system. The terms cardio and vascular refer to the heart and blood vessels, respectively. The circulatory system ensures that all of the body's tissues have enough blood to operate.