Biology - Thermoregulation 0.0 / 5 ? BiologyHomeostasisGCSEAQA Created by: LunaShomeiRoseCreated on: 02-12-18 13:43 What temperature should the human body remain at (core temperature)? 37 degrees 1 of 17 Why? It's the optimum temp for enzymes in body. If temp changed, enzymes would not be able to function properly 2 of 17 What can effect body temp? External temp (outside body), thermal energy generated through respiration, disease 3 of 17 What is thermoregulation? Process that maintains core body temp 4 of 17 What is thermorergulation an example of? Homeostasis -the regulation of internal conditions 5 of 17 What is body temp controlled/monitored by? Theroregulatory center in brain 6 of 17 It contains r___ that are sensitive to temp of blood flowing through brain receptors 7 of 17 The s__ also has temp receptors. They send n___ impulses to thermoregulatory system about the s__ temp Skin. nervous impulses. Skin temp. 8 of 17 What happens when body temp is too high? Impulses are sent to carry out response that will transfer energy from skin to environment 9 of 17 This can be done by v___ (decrease blood pressure by dilating [get wider] blood vessels) or s___ production Vasodilation or sweat production 10 of 17 Vasodilation works by d___ blood vessel so that ___ blood flows near the skin, ___ing the energy to the environment Dilating. more blood. radiating/transferring 11 of 17 Sweat can be produced by sweat ___. It's e___ into air, transferring energy from skin sweat glands. Evaporated 12 of 17 What happens when body temp is too low? Impulses are send out to carry out responses that will reduce energy transfer 13 of 17 This can be done by vasoconstriction, stopping of s___ or sh___ Sweating. Shivering 14 of 17 What is vasoconstriction? (opposite of vasodilation) When blood vessels restrict (get narrower) to reduce energy transfer 15 of 17 Shivering is caused by the rapid c__ and r___ of muscle. contract and relax. 16 of 17 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) 17 of 17
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