Micro Test 3

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  1. Mycology
    Study of fungi
  2. Thallus
    Body of a mold or fleshy fungus
  3. Arial hyphae
    reproductive hypha
  4. Budding yeasts
    divide unevenly
  5. Fission yeasts
    divide evenly into 2 cells
  6. dimorphism
    can grow either as mold or yeast
  7. mycosis
    • means any fungal infection
    • usually chronic
  8. systemic or deep mycoses
    • affect number tissues/organs
    • frequently through inhalation
  9. subcutaneous mycoses
    • skin, subcutaneous tissue, fascia and bone
    • direct implantation- eg. puncture
  10. cutaneous mycoses
    • skin, hair, nails (Dermatophytes)
    • direct contact
  11. superficial mycoses
    • hair and epidermis
    • prevalent in tropical climates
  12. Giardia lamblia
    • causes giardiases
    • symptoms are nasea, flatulence, weakness, and abdominal cramps that persist for weaks
    • transmitted in contaminated water
  13. Entamoeba histolytica
    • symptoms: dysentery
    • grows in large intestine
  14. Trichomonas vaginalis
    a sexually transmitted infection
  15. trypanosoma spps.
    causes Chagas' Disease and African Sleeping Sickness
  16. Plasmodium
    • causes Malaria
    • symptoms: chills and fver and severe headache at intervals of 2-3 days
  17. virion
    • complete infectious particle
    • nucleic acid surrounded by protein coat
  18. capsid
    protein coat
  19. capsomeres
    proteins that compse capsid
  20. nucleic acid
    DNA or RNA, not both
  21. envelope
    • lipid bilyare
    • surrounds capsid
    • not on every virus
  22. spkes
    proteins on some envelopes and non-enveloped viruses
  23. Helical
    • Tobacco Mosaic Virus
    • Rhabdovirus (rabies
  24. Polyhedral
    • Adenovirus
    • Poliovirus (polio)
  25. Enveloped Virus
    Influenzavirus (influenza)
  26. complex virus
    • bacteriophage
    • variola virus
  27. Scrapie
    • infects sheep
    • scape off fleece
  28. Kuru
    • fore tribe in Papua New Guinea
    • Cannibalistic funeral practices
  29. Creutzfed-Jacob Disease (CJD)
    • Progressive dementia, leads to memory loss, personality changes, hallucinations, etc
    • consume infected meat
  30. Mad Cow Disease
    • Bovine Spongiform Encephalopathy (BSE)
    • may be transmitted to humans
  31. Commensalism
    • 1 org. benefits, other unaffected
    • Corynebacteria on surface of eye
  32. Mutualism
    • benefits both
    • intestinal bact.
  33. Parasitism
    • one benefits at expense of others
    • any pathogenic org. 
  34. Direct contact transmission
    contact with infected carrier
  35. Indirect Contact transmission
    contact with contaminated fomites
  36. Droplet Transmission
    requires close proximity- droplets travel short distances
  37. Water Vehicle transmission
    waterborne transmission
  38. Food vehicle transmission
    foodborne transmission
  39. Air vehicle transmission
    airborne transmission
  40. Vector transmission Mechanical Transmission
    passive transport of microorganism
  41. Vector Transmission Direct Inoculation
    arthropod bit, mosquito, etc. 
  42. Incubation Period
    between initial infection and appearance of symptoms
  43. Prodromal period
    appearance of early, mild symptoms of disease
  44. Period of Illness
    most severe stage
  45. Period of Decline
    • decline of signs and symptoms
    • vulnerable to secondary infections
  46. Period of Convalescne
    recovery period- regain strength
  47. Epidemiology
    study of where and when a disease occurs and how it is transmitted
  48. Respiratory tract entry
    inhaled in drops or dust or through indirect contact
  49. Genitourinary tract entry
    most contracted sexually
  50. Eye entry
    though mucous membrane of eyes and eyelids
  51. GI tract entry
    through contaminated food or water
  52. breaks in skin entry
    unbroken skin impenetrable by most organisms
  53. parenteral route entry
    punctures, injections, bites, cuts, wounds, surgery
  54. pathogenecity
    the ability of a microorganism to cause disease
  55. virulence
    denotes relative pathogenicity
  56. ID50
    infectious dose in 50% of population
  57. LD50
    lethal dose in 50% of test population
  58. Invasiveness
    ability of a pathogen to invade tissues
Card Set:
Micro Test 3
2012-10-24 21:09:22
Micro Test

Micro Test 3
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