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*[[Erector Muscle|Erector muscles]] relax allowing the body hairs to lie flat on the [[skin]].
*[[Blood Vessel|Blood vessels]] near the surface of the [[skin]] [[dilate]] to allow more of the warm [[blood]] to pass its [[Thermal Energy Store|thermal energy]] on to the [[skin]].
When the [[Body Temperature|body temperature]] is too low
*[[Sweat Gland|Sweat glands]] stop [[secrete|secreting]] [[sweat]] and the [[skin]] becomes dry.
*[[Erector Muscle|Erector muscles]] contract causing body hairs to stand on end. This creates a pocket of trapped air under the hairs which insulates the body.
*[[Blood Vessel|Blood vessels]] near the surface of the [[skin]] [[constrict]] reducing [[blood]] flow close to the [[skin]] preventing [[Thermal Energy Store|thermal energy]] being lost to the [[skin]].
{| class="wikitable"
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|[[File:SkinDiagram.png|center|500px]]
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| style="height:20px; width:200px; text-align:center;" |A [[diagram]] showing the features of the [[skin]] involved in [[thermoregulation]].
|}