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5 Written Questions

5 Matching Questions

  1. Chemical Thermogenesis
  2. Structure of Sweat Gland
  3. Cell Volume
  4. Neural Integrators
  5. Chills
  1. a * Deep glandular portion in the dermis innervated by sympathetic fibers
    * Coiled duct opens to skin surface via a pore
  2. b Pyrogens increase hypothalamic thermostat set point suddenly initiating a cascade of events: dermal vasoconstriction, shivering, piloerection, hot sensation due to chemical thermogenesis.
  3. c (Intracellular fluid component) ~1.6 liters in adults
  4. d Another apt term for interneurons.
  5. e Long-term mechanism for generating body heat. Sympathetic nerves produce epinephrine and nor epinephrine and release into blood, and the thyroid releases thyroxin. Increased cellular metabolism and metabolic rate.

5 Multiple Choice Questions

  1. Increased metabolic rate (20-30%), more nutrients utilized, more calories consumed.
  2. Interstitial fluid (tissue fluid between cells); Blood Plasma; Lymphatic Fluid; Pleural Fluid; Pericardial Fluid; Cochlear and Ocular fluids; and the fluid in the tunic of the testes.
  3. 22% of heat loss. Sweat glands and exhalation provide liquid. Water off skin and out of lungs occurs at a rate of 450-600 mL/day = 12-16 kcal/hour of heat.
  4. Receives sensory input and compares it to the desired value (set point).
  5. * Isolates the cell
    * Regulates the intracellular and extracellular ionic environment
    * Comprised of a phospholipid bilayer

5 True/False Questions

  1. ReceptorOrgan or tissues that receive information (output) from the control center and produces a response.


  2. Survivable Ambient Temperature RangeAnother apt term for interneurons.


  3. Heat CrampsProlonged heat exposure with high humidity. Body gains heat by radiation and convection while evaporative cooling is retarded. Can lead to convulsions, coma, and death.


  4. Efferent NeuronsMotor neurons that are fibers from the central nervous system to effectors like muscles.


  5. Hypothalamic Temperature Control (Hot)Negative and Positive


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