True or False
True or False: In cold environments, we lose heat faster than we can produce heat
True
_____ is a physiological change that occurs within an organism to reduce strain from a given stressor
Acclimitization
Subject A has been working out in the cold for 14 days. Subject B has only been working out in the cold for 3 days. Which subject is likely more acclimated to the cold environment?
Subject A
True or False: We lose heat faster in the cold air than cold water?
False
Vasocontriction ____ blood flow to the extremities
decreases
Your friend is mentions that their fingers are pale and numb. After rewarming the area, they have regained function without cellular damage. What condition did they likely have?
Frostnip
True or False: Central thermoreceptors are located in places such as the skin and detect changes in temperature?
False
____ is defined as rapid, involuntary muscle contractions to increase metabolic heat production
Shivering
Subject B has a body fat percentage of 30%, while subject A has a body fat percentage of 20%. Which subject looses heat faster in a cold environment?
subject A
True or False: Trained individuals can sustain shivering for longer periods of time?
True
Maximal Heart Rate decreases by 10 to ___ bpm when core temperature decreases 0.5-2 degrees celsius
During prolonged cold exposure, SNS activity decreases while this system increases?
PNS
True or False: When exercising outdoors, glycogen stores are depleted slower
False
The human body loses heat ____ times faster in cold water than in cold air?
25 times
If someone is unable to take the temperature of someone they believe to be hypothermic, what system is used (Hint: based on clinical manifestations)
Swiss Staging System