Thermoregulation

Three ways you body can lose heat

• Evaporation of sweat

• Warm air exhaled out

• Hairs becoming erect

• Vasodilation

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Which progress produces heat in every living cell?

• digestion

• cellular respiration

• protein synthesis

• photosynthesis

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How is heat transferred around the body?

• Blood

• Water

• Sweat

• Skin

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The term for maintaining internal temperature is: 

• Thermoregulation
• Thermometer
• Homeothermal
• Homeostasis

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Which is NOT a function of the skin?

• Insulation
• Movement
• Excretion
• Thermoregulation

Which of the following is a reason for heat gain within the body? 

• Heavy exercise 
• Insufficient clothing
• Very low % of body fat
• Wind chill

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How do the muscles affect regulation of body temperature? 

• Errector pili muscles make hair stand up
• Shivering increases heat
• Muscles do not help regulate body temperature 
• Shivering decreases heat 

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What do blood vessels do to help with thermoregulation ? 

• Dilate to make the blood vessels smaller  so blood can flow faster 
• Constrict to make the blood vessels smaller  so blood can stay close to core

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Why do blood vessels dilate? 

• To keep the blood close to heart 
• So the heat can be transported to the skin for evaporation

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Homeostasis in the human body is often maintained by a: 

• neutral feedback loop 
• solar feedback loop
• positive feedback loop
• negative feedback loop

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