Micro II exam 5

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Micro II exam 5
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Micro II exam 5
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  1. the smallest free living bacteria known
    Mycoplasm sp.
  2. they have no cell wall
    Mycoplasm sp.
  3. causes Mycoplasma sp. to be flexible & pleomorphic
    no cell wall
  4. the colonies under a dissecting microscope have a "fried-egg" shape
    Mycoplasma sp.
  5. causes primary atypical pneumonia
    Mycoplasma pneumoniae
  6. transmitted via droplet spray or contact with contaminated respiratory secretions
    Mycoplasma pneumoniae
  7. tends to affect school-aged children and young adults

    rarely adults over the age of 50
    Mycoplasma pneumoniae
  8. these are urethral normal flora organisms of sexually active humans
    Mycoplasma hominis, urealyticum
  9. may cause several different infections of the reproductive systems
    Mycoplasma hominis, urealyticum
  10. similar to a gram-negative coccobacillus
    rickettsia
  11. are obligate intracellular parasites of man and certain arthropod vectors
    rickettsia
  12. they are small in size and are barely visible under a normal light microscope
    rickettsia
  13. rickettsia lack certain external structures associated with other bacteria
    • 1. flagella
    • 2. pili
    • 3. capsules
    • 4. spores
  14. rickettsia cause several diseases that have as characteristics
    • 1. high fever
    • 2. skin rash
  15. the diseases of _____________ organisms are difficult to diagnose because the symptoms are similar to many other diseases...and...the organisms are dangerous to work with
    rickerrsial
  16. it has been found that the genus of bacteria ___________ has an antigen in its cells that is also present in _________
    • 1. Proteus
    • 2. Rickettsia
  17. Proteus is less fdangerous to work with, a diagnosis of a rickettsial disease can be performed by testing for the presence of the shared antigen
    Weil-Felix test
  18. caused by Rickettsia prowazekii
    epidemic typhus fever (louse-borne typhus fever)
  19. transmitted from host to host via the human body louse
    • Rickettsia prowazekii
    • epidemic typhus fever (louse-borne typhus fever)
  20. a louse takes a blood meal from a person with typhus fever

    the rickettsia line the intestinal lining of the louse

    when the louse feeds again on another human host, it defecates

    leaving the skin contaminated with rickettsia
    • Rickettsia prowazekii
    • epidemic typhus fever (louse-borne typhus fever)
  21. the bite itches and the wound is infected when the organism is ground in by scratching
    • Rickettsia prowazekii
    • epidemic typhus fever (louse-borne typhus fever)
  22. characterized by a mental dullness or stupor caused by the high fever
    • Rickettsia prowazekii
    • epidemic typhus fever (louse-borne typhus fever)
  23. symptoms include:
    1. unbearable headache
    2. chills
    3. muscle ache
    4. rash over the entire body EXCEPT:
       a. face
       b. palms pf hands
       c. soles of feet
    • Rickettsia prowazekii
    • epidemic typhus fever (louse-borne typhus fever)
  24. caused by Rickettsia typhi
    • Endemic Tyohus fever
    • (Flea-borne typhus, Murine typhus)
  25. transmitted from host to host via the rat flea

    because the disease is endemic to rats and mice
    • Rickettsia typhi
    • Endemic Tyohus fever
    • (Flea-borne typhus, Murine typhus)
  26. the disease is similar to Epidemic typhus but is much less severe and rarely causes death
    • Rickettsia typhi
    • Endemic Tyohus fever
    • (Flea-borne typhus, Murine typhus)
  27. caused by Rickettsia rickettsii
    Rocky Mountain Spotted Fever
  28. transmitted from host to host via a tick
    • Rickettsia rickettsii
    • Rocky Mountain Spotted Fever
  29. the tick becomes infected by biting a diseased animal or by passage of the disease from a mother tick to her offspring
    • Rickettsia rickettsii
    • Rocky Mountain Spotted Fever
  30. children are the most likely to contract the disease
    • Rickettsia rickettsii
    • Rocky Mountain Spotted Fever
  31. adults are more likely to die
    • Rickettsia rickettsii
    • Rocky Mountain Spotted Fever
  32. symptoms include:
    1. flu-like aches & pains
    2. headache
    3. light sensitivity
    4. chills
    5. confusion
    6. several days of high fever
    7. a characteristic reddish to black rash
    • Rickettsia rickettsii
    • Rocky Mountain Spotted Fever
  33. starts on the extremities

    particularly on palms of hands and the soles of feet
    • Rickettsia rickettsii
    • Rocky Mountain Spotted Fever
  34. the rash signifies that the organism is multiplying in and destroying the endothelial cells of capillaries
    • Rickettsia rickettsii
    • Rocky Mountain Spotted Fever
  35. allows for the escape of RBC into the surrounding tissues causing the rash
    • Rickettsia rickettsii
    • Rocky Mountain Spotted Fever
  36. a common complication is that the disease cannot be diagnosed at the onset because the symptoms resemble those of many other diseases

    delayed treatment
    • Rickettsia rickettsii
    • Rocky Mountain Spotted Fever
  37. caused by Rickettsia tsutsugamushi (orientia)
    • Scrub Typhus Fever
    • (Tsutsugamushi disease)
  38. transmitted from host to host via a mite similar to a chigger
    • Rickettsia tsutsugamushi (orientia)
    • Scrub Typhus Fever
    • (Tsutsugamushi disease)
  39. symptoms include:
    1. severe headache
    2. chills
    3. fever
    4. characteristic rash called an eschar
    • Rickettsia tsutsugamushi (orientia)
    • Scrub Typhus Fever
    • (Tsutsugamushi disease)
  40. a rash that causes
  41. a sloughing off of the skin
    an eschar
  42. a rickettsial disease caused by coxiella burnetti
    Q fever
  43. transmitted from host to host in three ways:
    1. by inhallation
    2. by ingestion of raw milk
    3. by the bite of several types of ticks
    • Coxiella burnetti
    • Q fever
  44. because the organism is highly resistant to heat, light, and drying
    • by inhallation
    • Coxiella burnetti
    • Q fever
  45. does NOT REQUIRE an arthropod vector like other rickettsial diseases
    by ingestion of raw milk
  46. a gram-negative coccobacillus
    chlamydia
  47. obligate intracellular parasites
    chlamydia
  48. have a complex reproduction process that forms the infectious agents called elementary bodies
    chlamydia
  49. also know as Ornithosis, parrot fever, or chlamydial pneumonia
    • Psittacosis
    • chlamydia
  50. caused by Chlamydia psittaci
    • Psittacosis
    • chlamydia
  51. transmitted via inhalation of dust from the feces of virtually any type of bird

    1. wildbirds
    2. farm birds
    3. pets
    • Psittacosis
    • chlamydia
  52. causes an influenza-like infection with:
    1. headache
    2. fever
    3. cough
    • Psittacosis
    • chlamydia
  53. can be life-threatening with symptoms of:
    1. persistent high fever
    2. mental confusion
    3. SOB
    • Psittacosis
    • chlamydia
  54. known as inclusive conjunctivitis
    • Trachoma
    • chlamydia
  55. Chlamydia trachomatis
    • Trachoma
    • chlamydia
  56. transmitted by direct contact with contaminated fingers, towels, or clothing
    • Trachoma
    • chlamydia
  57. the word trachoma means
    rough
  58. a description of granular, pebble-like texture of the infected conjunctiva
    rough
  59. the inflammation process results in scarring of the cornea causing blindness
    • Trachoma
    • chlamydia
  60. this is the number one preventable cause of blindness worldwide
    • Trachoma
    • chlamydia
  61. climatic bubo
    • Lymphogranuloma venereum
    • chlamydia
  62. VD
    • Lymphogranuloma venereum
    • chlamydia
  63. caused by Chlamydia trachomatis
    • Lymphogranuloma venereum
    • chlamydia
  64. first manifests as a small lesion on the genitals
    • Lymphogranuloma venereum
    • chlamydia
  65. second, moves to the regional lymph nodes of the inguinal area
    • Lymphogranuloma venereum
    • chlamydia
  66. third, causes the nodes to become swollen, inflamed, & necrotic
    • Lymphogranuloma venereum
    • chlamydia
  67. lastly, will eventually disfigure the external genitalia because of lymphatic obstruction
    • Lymphogranuloma venereum
    • chlamydia
  68. the most frequent cause of gonorrhea negative urethritis
    • NGU (non-gonococcal urethritis)
    • NSU (non-specific urethritis)
    • chlamydia
  69. an STD that produces a chronic urethral discharge and inflammation for up to a year
    • NGU (non-gonococcal urethritis)
    • NSU (non-specific urethritis)
    • chlamydia
  70. Will disfigure the external genitalia
    • Lymphogranuloma venereum
    • chlamydia
  71. Which is more severe?... ... . Epidemic or Endemic typhus fever
    Epidemic typhus fever
  72. The most frequent cause of gonorrhea negative urethritis
    • NGU (non-gonococcal urethritis)
    • NSU (non-specific urethritis)
    • chlamydia
  73. Sloughing off of the skin
    eschar
  74. Rickettsia line the intestinal lining of the louse
    • Epidemic Typhus fever
    • (Louse-borne typhus fever)
  75. Rough
    trachoma
  76. Scarring of the cornea
    • inclusion conjuctivitis
    • Chlamydia trachomatis
  77. Louse defecates when eating
    • Epidemic Typhus fever
    • (Louse-borne typhus fever)
  78. Lack flagella, pili, capsules, and spores
    Rickettsia
  79. Number one preventable cause of blindness worldwide
    • Chlamyda trachomatis
    • inclusion conjunctivitis
  80. Starts as small lesions on the genitals and moves to regional lymph nodes
    • lymphogranuloma venereum
    • climatic bubo
    • chlamydia trachomatis
  81. Causes an influenza-like infection
    • Psittacosis
    • Chlamydia psittaci
  82. A rickettsial disease caused by a genus other than Rickettsia
    • Q fever
    • Coxiella burnetti
  83. Granular, pebble-like texture of the conjunctiva
    trachoma
  84. A venereal disease
    Lymphogranuloma venereum
  85. Causes a rash called an eschar
    • Scrub Typhus Fever (Tsutsugamushi disease)
    • Rickettsia tsutsugamushi (orientia)
  86. Bite wound itches and we grind the organism into our skin by scratching
    • Epidemic Typhus Fever (Louse-borne typhus fever)
    • Rickettsia prowazekii
  87. A rash that covers the entire body EXCEPT the face, palms of the hands, and soles of the feet
    • Epidemic Typhus Fever (Louse-borne typhus fever)
    • Rickettsia prowazekii
  88. A characteristic reddish to black rash
    • Rocky Mountain Spotted Fever
    • Rickettsia rickettsii
  89. Can be diagnosed by the Weil-Felix test
    • Proteus
    • Rickettsia
  90. Has a cellular antigen similar to that of Proteus?
    Rickettsia
  91. No cellwall
    Mycoplasma sp.
  92. Smallest "free-living" bacteria known.
    Mycoplasma sp.
  93. Fried-egg shape of colonies
    Mycoplasma sp.
  94. Flexible and pleomorphic
    Mycoplasma sp.
  95. Rarely atfects adults over 50... usually school-aged children and young adults
    Mycoplasma pneumoniae
  96. Urethral normal flora organism of sexually active humans
    Mycoplasma hominis, urealyticum
  97. Infectious agents are the elementary bodies
    Chlamydia
  98. Dust of bird feces
    • Psittacosis
    • Chlamydia psittaci
  99. Characterized by mental dullness and a stupor caused by the high fever
    • Epidemic Typhus fever (Louse-borne typhus fever)
    • Rickettsia prowazekii
  100. Disease is endemic to rats and mice
    • Endemic Typhus fever (Flea-borne typhus, Murine typhus)
    • Rickettsia typhi
  101. A rash that covers the entire body PARTICULARLY the palms of the hands and soles of the feet
    • Rocky Mountain Spotted Fever
    • Rickettsia rickettsii
  102. Light sensitivity is a symptom
    • Rocky Mountain Spotted Fever
    • Rickettsia rickettsii
  103. Destroys the endothelial cells of capillaries
    • Rocky Mountain Spotted Fever
    • Rickettsia rickettsii
  104. Causes a chronic urethral discharge and inflammation for up to a year
    • NGU
    • NSu
  105. lntermediate in size between bacteria and viruses(2)
    • Rickettsia
    • Mycoplasma
  106. Small in size and barely visible under a normal light microscope(2)
    • Rickettsia
    • Mycoplasma
  107. Children are most likely to contract it but adults are more likeiy to die
    • Rocky Mountain Spotted Fever
    • Rickettsia rickettsii
  108. Distinctive features of the disease include a high fever and skin rash
    • Rocky Mountain Spotted Fever
    • Rickettsia rickettsii

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