Yes and No. Yes - the blood circulates about once every minute and unless you're bleeding it all gets back to the heart. read more
Start studying The Cardiovascular and Respiratory Systems. Learn vocabulary, terms, and more with flashcards, games, and other study tools. read more
The cardiovascular system is also known as the circulatory system. It is made up of the heart, the blood vessels namely arteries, veins and capillaries, and approximately five liters of blood. read more