NUR 170 Exam 3 (Actual Exam 2026) | Complete
Questions and Correct Answers | Verified Answers |
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What is thermoregulation? - (ANSWER)body temperature
body process that balances production and heat loss
heat produced - heat loss = body temperature
What is the goal of thermoregulation? - (ANSWER)to maintain the body's
temperature within acceptable/safe range
the body wants to maintain homeostasis
body knows where it wants to live (temp. wise), doing what it can to get back to
homeostasis
to prevent death
too cold or too hot, death can occur
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What is homeostasis? - (ANSWER)Maintaining a stable internal environment
What is cellular respiration? - (ANSWER)glucose and oxygen make energy, with
the by product of heat
anything that we do to speed up this process, create more heat
expend more energy, expend heat
In regards to body temperature, what happens to a body after a person dies? -
(ANSWER)body temp drops because no energy is being created meaning no heat
What factors affect heat production? - (ANSWER)basal metabolic rate, muscle
activity, thyroxine output, sympathetic stimulation/stress response, fever
What is basal metabolic rate? - (ANSWER)the rate of energy utilization the body
uses to maintain essential activities
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decreases with age: metabolism is slowing down
making older people colder
What does muscle activity (exercise) do to body temperature? - (ANSWER)when
you exercise, you get hot
exercise increases the need for energy (ATP), thus produces byproduct of more
heat
shivering when cold, produces energy, producing more heat
What does thyroxine output do to body temperature? - (ANSWER)increased
thyroxine levels release epinephrine, when it is released, it increases
vasoconstriction, we accelerated the cellular metabolic rate, increasing the heat
production
What is chemical thermogenesis? - (ANSWER)the stimulation of heat production
in the body through increased cellular metabolism
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What is sympathetic stimulation/stress response do to body temperature? -
(ANSWER)fight or flight response
walking into exams, anxious or see a question that sends you into fight or flight,
you get a rush of heat through body
release of epinephrine and noro-epinephrine, which will increase metabolism,
creating more heat
What does a fever do to body temperature? - (ANSWER)an immune response
that raises the body temperature
not will it raise body temperature, but increase our metabolic needs/rate,
increasing energy and thus our by product, heat
Wha are different types of heat loss from the body? - (ANSWER)radiation,
conduction, convection, vaporization
What is radiation? - (ANSWER)the transfer of heat from the surface of an object
without touching