drink more as when it is hot more water is lost from th skin so more water must be consumed to balance the loss
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what happens if the core temperature rises
blood vessels near the surface of the skin dilate allowing more blood to flow through the skin capillaries. energy is transferred ny radiation and the skin cools
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what else happens if the core temp rises?
sweat glands produce more sweat. its water evaporates from the skins surface. the energy required for the water to evaporate comes from the skins surface so we cool down
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what happens if the core temp falls?
blood vessels near the surface of the skin constrict and less blood flows through the skin capillaries. less energy is radiated.
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what else happnes if the core temp falls?
we shiver. muscles contract quickly. this requires respiration and some of the energy warms the blood
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