121 Week 2 Chapter 1 Disease Process


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121 Week 2 Chapter 1 Disease Process

  1. 1. The Disease Process Objectives <ul><li>Define disease </li></ul><ul><li>Define illness </li></ul><ul><li>Identify the process of inflammation </li></ul><ul><li>Identify 3 means of protection provided by the immune system </li></ul><ul><li>Identify allergic reaction </li></ul>
  2. 2. Define disease <ul><li>Pathological condition of the body in response to alteration in normal body harmony: disruption of homeostasis </li></ul><ul><li>Known by medical classification and distinguishing features </li></ul>
  3. 3. Disease Result of: <ul><li>Pathogens </li></ul><ul><li>Trauma </li></ul><ul><li>Physical and chemical agents </li></ul><ul><li>Genetics </li></ul><ul><li>Metabolic or nutritional disorders </li></ul>
  4. 4. Define Illness <ul><li>Describes the condition of a person who is experiencing disease; how they feel, what they think about disease and how it will affect their lives </li></ul>
  5. 5. Identify Process of Inflammation <ul><li>Redness </li></ul><ul><li>Swelling </li></ul><ul><li>Pain </li></ul><ul><li>Heat </li></ul><ul><li>Loss of Function </li></ul>
  6. 6. 3 Means of Protection by Immune System <ul><li>Normal body structures block entry of pathogens (skin, mucous membranes) </li></ul><ul><li>Inflammatory response (pathogens identified as foreign, or allergen) engulfed by phagocytosis </li></ul><ul><li>Specific immune response (through natural or acquired immunity) </li></ul>
  7. 7. Identify allergic reaction <ul><li>Occurs when immunity malfunctions </li></ul><ul><li>Predisposing factors include family history, stress, physical condition </li></ul>