APK 3120 Exam 4 Questions & Answers 2024/2025
Body temperature regulation - ANSWERSStress of physical exertion complicated by environmental thermal conditions
Homeothermic - ANSWERSinternal body temperature regulated, nearly constant despite environmental temperature changes
Thermoregula...
Body temperature regulation - ANSWERSStress of physical exertion complicated by environmental
thermal conditions
Homeothermic - ANSWERSinternal body temperature regulated, nearly constant despite environmental
temperature changes
Thermoregulation - ANSWERSregulation of body temperature around a physiological set point
Acclimation - ANSWERSshort-term adaptation to environmental stressor (days/weeks)
Acclimatization - ANSWERSlong-term adaptation to environmental stressor (months/years)
Transfer of heat between body and environment - ANSWERS-Heat moves from body core to body shell
via blood
-When heat reaches skin, can be dissipated by conduction, convection, radiation, or evaporation
Conduction - ANSWERSthe transfer of heat from one solid material to another though direct molecular
contact
Radiation - ANSWERSHeat loss in form infrared rays
Convection - ANSWERSmoving heat from one place to another by the motion of gas or liquid across a
heated surface
Evaporation - ANSWERSHeat loss via phase change from liquid to gas
, Preoptic-anterior hypothalamus (POAH) - ANSWERSBody's thermostat located in the brain
Receives input from sensory thermoreceptors
When body temperature deviates, POAH activates thermoregulatory mechanisms
peripheral thermoreceptors - ANSWERSlocated in the skin
central thermoreceptors - ANSWERSlocated in the brain and spinal cord
Core body temperature - ANSWERShighest
Skin Temperature - ANSWERSLowest
Heat Strain Assessment - ANSWERS-Internal Body Temperature
-Skin Temperature
-Heart Rate
-Body Weight
Acute Physical Changes to Heat Strain - ANSWERS-Increased Heart Rate
-Vasodilation
-Increased sweat production
-Increased release of ADH and aldosterone
-Increased reliance on carbohydrate for energy
Acute Altitude: Pulmonary and Blood Adaptations - ANSWERS-Increased resting ventilation
-Increased submaximal exercise ventilation rate
-Pulmonary diffusion well maintained
Altitude: Muscle and Cardiovascular Adaptations - ANSWERS-Decrease in muscle fiber CSA
-Reduced mitochondrial and glycolytic enzyme activities
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Bensuda. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £6.77. You're not tied to anything after your purchase.
