Biology - Thermoregulation

What temperature should the human body remain at (core temperature)?
37 degrees
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Why?
It's the optimum temp for enzymes in body. If temp changed, enzymes would not be able to function properly
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What can effect body temp?
External temp (outside body), thermal energy generated through respiration, disease
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What is thermoregulation?
Process that maintains core body temp
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What is thermorergulation an example of?
Homeostasis -the regulation of internal conditions
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What is body temp controlled/monitored by?
Theroregulatory center in brain
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It contains r___ that are sensitive to temp of blood flowing through brain
receptors
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The s__ also has temp receptors. They send n___ impulses to thermoregulatory system about the s__ temp
Skin. nervous impulses. Skin temp.
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What happens when body temp is too high?
Impulses are sent to carry out response that will transfer energy from skin to environment
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This can be done by v___ (decrease blood pressure by dilating [get wider] blood vessels) or s___ production
Vasodilation or sweat production
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Vasodilation works by d___ blood vessel so that ___ blood flows near the skin, ___ing the energy to the environment
Dilating. more blood. radiating/transferring
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Sweat can be produced by sweat ___. It's e___ into air, transferring energy from skin
sweat glands. Evaporated
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What happens when body temp is too low?
Impulses are send out to carry out responses that will reduce energy transfer
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This can be done by vasoconstriction, stopping of s___ or sh___
Sweating. Shivering
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What is vasoconstriction? (opposite of vasodilation)
When blood vessels restrict (get narrower) to reduce energy transfer
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Shivering is caused by the rapid c__ and r___ of muscle.
contract and relax.
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This requires energy from r___, meaning more energy will be produced in process of shivering as respiration is an __othermic reaction
respiration. exothermic (will give out thermal energy to body)
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Other cards in this set

Card 2

Front

Why?

Back

It's the optimum temp for enzymes in body. If temp changed, enzymes would not be able to function properly

Card 3

Front

What can effect body temp?

Back

Preview of the front of card 3

Card 4

Front

What is thermoregulation?

Back

Preview of the front of card 4

Card 5

Front

What is thermorergulation an example of?

Back

Preview of the front of card 5
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