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Thermoregulation - Anatomy & Physiology (view source)
Revision as of 14:53, 5 August 2008
, 14:53, 5 August 2008no edit summary
*Sweating Stops
*Sweating Stops
*Cutaneous arteries constrict - ''Vasoconstriction''. This minimises heat loss from the blood to the body surface.
*Cutaneous arteries constrict - ''Vasoconstriction''. This minimises heat loss from the blood to the body surface.
*[[Hair - Anatomy & Physiology|Hairs]] on the skin are raised involuntarily by the ''arrector pili''
*[[Hair - Anatomy & Physiology|Hairs]] on the skin are raised involuntarily by the ''arrector pili'' muscles attached to each hair follicle. This layer acts as an insulator, trapping heat.
*Increased Heat Production - muscles receive messages from the brain causing shivering. This causes increased heat production as the muscle cells respire.
*Respiration - this may be increased as respiration is an exothermic reaction.