Focusing on the cardiovascular system, lets dive into organs. No, not the state in the Pacific Northwest and definitely not the large piped musical keyboard you’d find in a church or a ballpark. We’re talking about the collection of tissues within the body that perform vital functions for life. Organs! Diseases of the cardiovascular system are the most common cause of death in developed economies. The main components of the cardiovascular system are the heart, arteries and veins, kidneys, and that warm red liquid inside of you, blood! Blood is not technically an organ but, according to Stan, it should be. Dr. Crooke covers how the blood cycle delivers nutrients and oxygen to other organs, the factors and checklist of blood clotting, a few of the countless factors or mutations within blood cells that cause both common and rare diseases, and more.