When the blood flow changes, does that change the temperature gradient with the environment?

When the blood flow changes, does that change the temperature gradient with the environment? How does that help regulate the body temperature?When the blood flow changes, does that change the temperature gradient with the environment?
http://en.wikipedia.org/wiki/Thermoregul鈥?/a>When the blood flow changes, does that change the temperature gradient with the environment?
To cool off, the blood flow to the skin increases, causing warm blood from deep within the body to reach the surface where this heat can be lost to the environment, getting rid of some of the excess heat, eventually cooling the body