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Body Fluid Solution Set #1 (Sept 7)

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Department
Physiology
Course
PHGY 209
Professor
Ann Wechsler
Semester
Fall

Description
Body Fluids  Short Answer Questions  1. Define homeostasis.     Homeostasis is the maintenance of a relatively constant internal environment.  2. Distinguish between obligatory and facultative losses.    Obligatory losses occur regardless of fluid intake, whereas facultative losses vary with fluid    intake and occurs in order to achieve water balance.  3. How does insensible perspiration differ from sweating? Do people without sweat glands still  experience insensible perspiration?  Insensible Perspiration Sweating Pure water  Electrolyte solution  Passive evaporation  Active secretion  Entire skin surface  Sweat glands  Continuous  Activated by heavy work or high temperature    4. Compare the water content of a 250‐kg elite body builder and a 250‐kg amateur sumo wrestler, and  postulate why  they might be different.    Although both individuals have a significant amount of muscle, due to the nature of their    activities and eating habits, the sumo wrestler would have amassed far more adipose tissue.    Since adipose tissue has very low water content, the sumo wrestler has less water than the    body builder even though they have the same body mass.  5. A group of geologists travel to the Himalayan Mountains to study rocks in the area. What effect would  these geologists experience in terms of fluid losses (if any)?  At high altitudes, the air is more dry. Therefore, the geologists would experience increased  passive evaporation (insensible perspiration) and especially increased water loss through the  lungs.  MCQs TYPE A (one out of the following 5 choices is 
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