The circulatory system is responsible for transporting blood from the heart to all of the body’s tissues. It transports oxygen and carbon dioxide, as well as nutrients and metabolic waste. A person’s circulatory system is also important in heat control, hormone transport, and immune function, among other things.

Source:
Cardiovascular system. histology. (n.d.). Retrieved March 28, 2022, from https://histology.medicine.umich.edu/resources/cardiovascular-system