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HBIO 205 FINAL Exam Guide |Questions with Complete Solutions
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HBIO 205 FINAL Exam Guide|Questions with Complete Solutions
fluid compartments - ✔males = 60% body
weight females = 50% body weight all in FFM
5% pasma
15% interstitial
40% intracellular
all water loss comes from plasms
Osmolarity - ✔concentration of osmotically active particles in a
solution osmolarity of the 3 fluid spaces are the same solute content
makes up fluid space
gastric emptying - ✔how fast things go through the stomach where it can be
absorbed, affected by osmolarity, pH, sugar, temp
WBGT Index - ✔.7 x WB + .2 x GT + .1 x DB
, Exposure to cold ambient temperatures - ✔reducing blood flow to periphery can
increase insulating capacity of peripheral tissues by 2-3x, leads to shivering and increase
RMR 2-3 x above rest
vasoconstriction and shivering - ✔when body temp goes below set point, heat
production mechanisms kick in
vasocontriction = body attempts to restrict blood flow to the periphery
exposure to cold water - ✔causes blood vessels to constrict, causing a massive jump in
blood pressure
cold adaptations - ✔
stroke volume (SV) - ✔volume of blood ejected by each ventricle per beat
endurance trained values at rest of HR, SV, and Q - ✔HR = 50 bpm
SV = 100 ml/beat
Q = 5 l/min
sedentary values at rest of HR, SV, and Q - ✔HR =70 bpm
SV = about 72 ml/beat
Q = 5 L/min
maximal aerobic exercise (sedentary values) of Q, HR, and SV - ✔Q = 16-17
L/min HR = 200 bpm
SV = 80-85 ml/beat
maximal aerobic exercise (endurance trained values) of Q, HR, and SV - ✔Q = about 30 L/min
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