NUR 170 Exam 3 UPDATED ACTUAL Questions and CORRRECT Answers
1. What is ther- body temperature
moregulation?
body process that balances production and heat loss
heat produced - heat loss = body temperature
2. What is the goal
of thermoregula-
tion?
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
3. What is homeosta- Maintaining a stable internal environment
sis?
4. What is cellular glucose and oxygen make energy, with the by product of heat
respiration?
anything that we do to speed up this process, create more heat
expend more energy, expend heat
5. In regards to body
temperature, what
happens to a body
body temp drops because no energy is being created meaning no heat
after a person
dies?
6. What factors affect basal metabolic rate, muscle activity, thyroxine output, sympathetic stimula-
heat production? tion/stress response, fever
,7. What is basal the rate of energy utilization the body uses to maintain essential activities
metabolic rate?
decreases with age: metabolism is slowing down
making older people colder
8. What does mus-
cle activity (exer-
cise) do to body
when you exercise, you get hot
temperature?
exercise increases the need for energy (ATP), thus produces byproduct of more
heat
9. What does thy-
roxine output do shivering when cold, produces energy, producing more heat
to body tempera-
ture? increased thyroxine levels release epinephrine, when it is released, it increases
10. What is chemical vasoconstriction, we accelerated the cellular metabolic rate, increasing the heat
thermogenesis? production
11. What is sym-
pathetic stimu-
lation/stress re-
the stimulation of heat production in the body through increased cellular
sponse do to body metabolism
temperature?
fight or flight response
12. What does a fever walking into exams, anxious or see a question that sends you into fight or flight,
do to body tem- you get a rush of heat through body
perature?
release of epinephrine and noro-epinephrine, which will increase metabolism,
creating more heat
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
,13. Wha are different radiation, conduction, convection, vaporization
types of heat loss
from the body?
14. What is radiation? the transfer of heat from the surface of an object without touching
getting hot from the sun's rays (not touching)
dog doesn't touch, waking up sweating because the dog radiates so much heat
15. What is conduc- transfer of heat from one molecule to a molecule of lower temperature, needing
tion? to be touching
tepid (cool) bath
-taking someone with a fever, putting them in a cool bath
ice packs
cool washcloths
16. What is convec-
tion? heating pad
dispersion of heat by the fluid of air or water across the skin
convection oven has a fan in the back, heat is being dispersed through the fan
heat loss: fan
spritzing water
when dog is radiate heat, turn on fan to bring my body temperature down
fluid motion of air comes down and blows it away
amusement park with mist showers
, 17. What is vaporiza- continuous evaporation of moisture form repository tract, mucosa of mouth or
tion? skin (swat glands)
perspiration when we work out
millions of sweat glands that produce perspiration (sweating), and when the
body needs to lose heat (cool) the sweat glands will sweat and then it will
evaporate
18. How is the heat
of the body mea- when you sweat, body is trying to drop body temperature
sured?
celcius and fahrenheit
19. What controls F = (C x 9/5) + 32
body temepra-
ture? C= 5/9 (F - 32)
20. What is nor- the hypothalamus, which acts as a thermostat, decides what your set point is
mal body tempera-
ture?
21. What does the hy-
pothalamus to in average is 98.6 F = 37 C
regards to body
temperature?
22. What does the
body do when its will elicit a response from the body (produce or lose heat)
cold?
goal is to keep body within normal range
thermal receptors sends signals to the hypothalamus that they are cold, and
the hypothalamus will then vaso-constrict (BV get smaller), which will prevent
further heat loss from skin through radiation
1. What is ther- body temperature
moregulation?
body process that balances production and heat loss
heat produced - heat loss = body temperature
2. What is the goal
of thermoregula-
tion?
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
3. What is homeosta- Maintaining a stable internal environment
sis?
4. What is cellular glucose and oxygen make energy, with the by product of heat
respiration?
anything that we do to speed up this process, create more heat
expend more energy, expend heat
5. In regards to body
temperature, what
happens to a body
body temp drops because no energy is being created meaning no heat
after a person
dies?
6. What factors affect basal metabolic rate, muscle activity, thyroxine output, sympathetic stimula-
heat production? tion/stress response, fever
,7. What is basal the rate of energy utilization the body uses to maintain essential activities
metabolic rate?
decreases with age: metabolism is slowing down
making older people colder
8. What does mus-
cle activity (exer-
cise) do to body
when you exercise, you get hot
temperature?
exercise increases the need for energy (ATP), thus produces byproduct of more
heat
9. What does thy-
roxine output do shivering when cold, produces energy, producing more heat
to body tempera-
ture? increased thyroxine levels release epinephrine, when it is released, it increases
10. What is chemical vasoconstriction, we accelerated the cellular metabolic rate, increasing the heat
thermogenesis? production
11. What is sym-
pathetic stimu-
lation/stress re-
the stimulation of heat production in the body through increased cellular
sponse do to body metabolism
temperature?
fight or flight response
12. What does a fever walking into exams, anxious or see a question that sends you into fight or flight,
do to body tem- you get a rush of heat through body
perature?
release of epinephrine and noro-epinephrine, which will increase metabolism,
creating more heat
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
,13. Wha are different radiation, conduction, convection, vaporization
types of heat loss
from the body?
14. What is radiation? the transfer of heat from the surface of an object without touching
getting hot from the sun's rays (not touching)
dog doesn't touch, waking up sweating because the dog radiates so much heat
15. What is conduc- transfer of heat from one molecule to a molecule of lower temperature, needing
tion? to be touching
tepid (cool) bath
-taking someone with a fever, putting them in a cool bath
ice packs
cool washcloths
16. What is convec-
tion? heating pad
dispersion of heat by the fluid of air or water across the skin
convection oven has a fan in the back, heat is being dispersed through the fan
heat loss: fan
spritzing water
when dog is radiate heat, turn on fan to bring my body temperature down
fluid motion of air comes down and blows it away
amusement park with mist showers
, 17. What is vaporiza- continuous evaporation of moisture form repository tract, mucosa of mouth or
tion? skin (swat glands)
perspiration when we work out
millions of sweat glands that produce perspiration (sweating), and when the
body needs to lose heat (cool) the sweat glands will sweat and then it will
evaporate
18. How is the heat
of the body mea- when you sweat, body is trying to drop body temperature
sured?
celcius and fahrenheit
19. What controls F = (C x 9/5) + 32
body temepra-
ture? C= 5/9 (F - 32)
20. What is nor- the hypothalamus, which acts as a thermostat, decides what your set point is
mal body tempera-
ture?
21. What does the hy-
pothalamus to in average is 98.6 F = 37 C
regards to body
temperature?
22. What does the
body do when its will elicit a response from the body (produce or lose heat)
cold?
goal is to keep body within normal range
thermal receptors sends signals to the hypothalamus that they are cold, and
the hypothalamus will then vaso-constrict (BV get smaller), which will prevent
further heat loss from skin through radiation
