Answer:
The four major functions of the cardiovascular system are:
1. To transport nutrients, gases and waste products around the body.
2. To protect the body from infection and blood loss.
3. To help the body maintain a constant body temperature.
4. To help maintain fluid balance within the body.
Explanation: So, overall It plays an important role in helping the body meet the demands of activity, exercise, and stress. It also helps maintain body temperature, among other things. Hope this helps ^-^.