What are the heart and blood vessels? Blood vessels type the residing system of tubes that carry blood both to and from the center. All cells in the body need oxygen and the vital nutrients found in blood. Without oxygen and these nutrients, the cells will die. The center helps to offer oxygen and nutrients to the physique's tissues and BloodVitals home monitor organs by ensuring a wealthy provide of blood. Not solely do blood vessels carry oxygen and nutrients, BloodVitals SPO2 additionally they transport carbon dioxide and waste products away from our cells. Carbon dioxide is passed out of the physique by the lungs