Chap 1

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  1. Anatomy
    the study of the structure of the body
  2. Physiology
    Literally the study of the function; considers the ways living organisms perform vital activities
  3. Homeostasis
    The maintenance of a relatively internal environment
  4. Cytology
    study of cells
  5. Histology
    the study of tissues
  6. Atom
    the smallest, stable unit of matter
  7. Chemical
    An intracellular structure that performs a specific function or group of functions
  8. Cell
    The smallest living unit in the human body
  9. Tissue
    A collection of specialized cells and cell products that perform a specific function
  10. Positive Feedback
    Mechanism that increases a deviation from normal limits following an initial stimulus
  11. Negative Feedback
    Corrective mechanism that opposes or reverses a variation for normal limits and restores homeostasis
  12. Extracellular fluid
    All body fluid other than that contained within cells; includes plasma and interstitial fluid
  13. Interstitial fluid
    Fluid in the tissues that fills the spaces between cells
  14. Pathology
    the study of the effects of diseases on organ or system functions
  15. Organ
    combinations of tissues that perform complex functions
  16. Organism
    An individual living thing that can react to stimuli, reproduce, grow, and maintain homeostasis. It can be a virus, bacterium, protist, fungus, plant or an animal.
  17. Organ system
    A group of organs that work together to carry out a particular task.
  18. External environment
    The environment outside of the organism, which pertains to the physical, chemical, biological and social conditions surrounding the organism.
  19. Internal environment
    (1) The outside of the cells inside the body of an organism.(2) The extracellular fluid environment.
  20. Chemical
    • (1) A substance made up of chemical elements or produced from a chemical process
    • (2) A drug, especially illicit or addictive drug
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Chap 1
2012-12-18 19:53:20

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