Phys Ch 1

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Author:
CrysAM
ID:
233383
Filename:
Phys Ch 1
Updated:
2013-09-07 15:22:52
Tags:
physiology
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Description:
physiology chapter 1
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  1. Physiology
    the science of body function
  2. Cell
    Smallest living unit
  3. 4 types of tissue
    epithelial, connective, muscle, nervous
  4. homeostasis
    the ability to maintain a relatively constant internal environment
  5. Conditions of the internal environment which are regulated include:
    • temperature
    • volume and pressure
    • composition of fluids (water, electrolytes)
    • pH
    • oxygen and carbon monoxide (O2 & CO2)
    • nutrients
    • waste products
  6. regulated variable
    the aspect which is maintained
  7. negative feedback
    • If a regulated variable decreases, system responds to make it increase, and vice versa
    • tends to be self correcting

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