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Disease 2

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Transcript

  • 1. Disease “ He himself bore our sins in his body on the tree, so that we might die to sins and live for righteousness; by his wounds you have been healed ” 1 Peter 2:24
  • 2. At the end of this lecture you will be able to…
    • Identify some diseases
    • Identify and describe the FACE of disease
    • Classify disease into 2 categories
    • Begin to identify some responses of the body to infection
  • 3. Checkpoint 1: Disease
    • What makes a disease a disease?
    • What are some diseases?
  • 4. What is disease?
    • Disease is a condition that
      • Function impaired
      • A series of recognizable symptoms
      • Cause known
      • Evaluation for identification
  • 5.  
  • 6.  
  • 7. Types of disease
    • Non-infectious diseases
      • Genetic or hereditary e.g. hemophilia
      • Congenital e.g. fetal alcohol syndrome
      • Environmental e.g. anemia
      • Not transmitted by a microorganism
      • Not contagious
  • 8. Hemophilia
    • People are missing the protein that makes their blood clot
    • Bruises become hematomas
    • Cuts can be life threatening
  • 9. Anemia
    • Lack of iron in the diet causes reduction in red blood cells
    • Tiredness, shortness of breath, heart failure
  • 10. Checkpoint 2
    • What are two types of non-infectious diseases? What causes them?
    • Describe the impact of non infectious disease on our society?
  • 11. Types of disease con’t …..
    • Infectious diseases
      • Bacterial e.g. cholera
      • Viral e.g. chicken pox
      • Fungal e.g. tinnea
      • Parasitic e.g. malaria
      • Transmitted by a microorganism
      • Contagious
  • 12. Chicken Pox
    • Spots that become blisters
    • Blisters contain fluid
    • Blisters become itchy scabs
  • 13. Cholera
    • Intestinal infection
    • Diarrhea and severe dehydration
    • Transmitted through contaminated water or food
  • 14. Checkpoint 3: Disease
    • What is an example of an infectious disease? What are some of the symptoms of this disease?
    • Describe an infectious disease that you have suffered from?
  • 15. Pathogens
    • Not all microorganisms cause disease
      • Yeast: yoghurt
      • Micro flora: healthy skin
    • Pathogens are microorganisms which cause disease
  • 16. How are pathogens transmitted?
    • In the air
    • In water
    • In food
    • In body fluids e.g. saliva
    • By touching
    • By another organism e.g. mosquito
    • These transmitters are called vectors
  • 17. How do pathogens make us sick?
    • Bacteria produce poisons that kill our cells
    • Viruses use our cells to reproduce and then the cell dies
    • Fungi grow and produce toxins
    • Parasites live and grow in our body destroying tissue
  • 18. Checkpoint 4: Pathogens
    • Name a pathogen that you are familiar with. What are its effects?
    • Describe your journey as a pathogen.
  • 19. Virus Reproduction
  • 20. Parasite Activity
    • Mosquito Attack
    • Blood cell penetration
    • Parasite Release
  • 21. Body Response
    • First line of defense
      • Physical barriers eg skin
    • Second line of defense
      • Cell attack
    • Third line of defense
      • immunity
  • 22. Stop the Spread of Disease!
    • Preventing Infection
    • Stopping the spread