Smooth muscles in arterioles in the skin. Muscles contract causing vasoconstriction. Less heat is carried from the core to the surface of the body, maintaining core temperature. Extremities can turn blue and feel cold and can even be damaged (frostbite).
Smooth musclesin arterioles in theskin.Muscles contract causingvasoconstriction. Less heat iscarried from the core to the surfaceof the body, maintaining coretemperature. Extremities can turnblue and feel cold and can even bedamaged (frostbite).