Ok i have a project Im doing on the red blood cells and I need to know how the blood cools down the body....
It depends. If it's colder than your body temp (say 70 degrees) then as the blood circulates close to the surface (near the skin) it looses heat to the environment. What if it was -30F? If it were say, 100 degrees no coolig will take place. That's why we sweat.
See:
(Broken Link Removed)