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Related Flashcards
Cards In This Set
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What function do the hairs on the skin perform?
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Hairs help insulate the body by trapping air in them.
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How is hair attached to the skin?
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Normally hair lies at an angle to the skin, with erectile muscle attaching to it.
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How to the hair on the skin behave during cold weather?
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When it's cold, erectile muscles contract, and the hair stands up. This erect position helps hair to trap more air, providing better insulation.
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What is the use of fat in hypodermis?
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Fat layer for insulation: fat in hypodermis act as insulation.
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Where are the sweat glands located?
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Sweat glands: location in dermis
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What is the function of sweat glands?
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Sweat glands produce sweat, cools the body by evaporative cooling.
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Describe vasoconstriction during cold weather.
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When it's cold: vasoconstriction of arterioles reduce blood supply to skin capillaries. Leads to less heat loss at skin surface.
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Describe vasodilation during hot weather.
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When it's hot: vasodilation of arterioles increase blood supply to the skin capillaries. Leads to more heat loss at skin surface.
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