The cardiovascular system (or circulatory system) is like a transport system for our body. It provides a system where oxygenated blood from the heart and lungs is transferred to the rest of the body through arteries, and deoxygenated blood is taken back through veins
We teenagers are young and lively people. We love to have fun, and we love the freedom and independence we get that lead us to believe that we can win both small and big battles. In this harsh exterior, a child has a sense of insecurity or fear of the unknown.