Homeostasis- Temperature Control Flashcards
(5 cards)
How does sweat cool the body?
The heat radiated from the body causes the sweat to evaporate and the water droplets to carry the energy away.
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What does sweating result in?
Water lost that needs to be regained through consumption
> less urine produced
How does the body detect core body temperature change?
Through temperature receptors in the brain that detect the temperature of the blood flowing through them
> through the nerve cell receptors in the skin send nerve impulses to the brain.
How does the body respond to a rise in core body temp?
> blood vessels supplying capillaries dilate, causing more blood to flow through the capillaries so more heat is radiated
> the hair erector muscle relaxes
> sweat is produced by the sweat glands and evaporates,cooling body
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How does the body respond when the core body temperature drops?
> the vessels supplying the capillaries constrict, so less blood flows to the capillaries and less heat energy is lost.
> hair muscles erect,creating an insulating layer of air
> muscles automatically contract, this requires respiration and releases some energy to warm body
