Heat loss in controlled by regulation dermal blood flow........
vasodilation-increases dermal blood flow, which also increases heat loss
vasoconstriction- decreases dermal blood flow which decreases heat loss
Heat Loss is by FOUR METHODs:
radiation: most heat loss is by this mode
infradred heat rays move from area of high heat(i.e. the blood) to areas of low heat (environment)
Conduction: less heat loss,heat moves by physical contact, the reason the eat you sit in is warm
Convection:heat loss to surrounding air,increases as air movement increases, that is why turning on ur fan cools ur body
Evaporation: heat loss varies, if heat increase, our sweating increases, so we lose more heat by evaporting the sweat on the surface of our skin
Low body temperatures require heat loss to by minimized