The blood is the circulation system which is also called the cardiovasular system is the organ system that permits blood to ciculate and transport nutrients, oxygen, cardio dioxide and hormones is made up of the vessels that carry blood and lymph throughout the body delivery the oxygen and takeing awats tissues waste matters .the circulation system consits of three independents system that is the heart the lung the arteries, vein coronary and portal vessels they are all responsible of the flow of the blood nutrients oxygen and other gases as well as the hormones that form cells.