Worms (mostly parasitic) PowerPoint PPT Presentation

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Title: Worms (mostly parasitic)


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Worms (mostly parasitic)
  • Or the reasons you need to make sure you wash
    your hands and cook your meat ?

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Fluke (Flat)
  • Parasite
  • Live in nearly every organ and blood
  • Have suckers to attach to tissue
  • Can get by eating infected meat
  • Swim in water attach and burrow through skin

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Tapeworm (Flat)
  • Parasitic
  • Live in intestines and absorbs host's food
  • Can also live in most organs including eyes,
    brain and heart
  • Head-like organ has hooks and suckers to attach
  • No mouth or intestines, but made of segments that
    are male and female
  • Can grow up to 30 feet
  • Causes stomach pain, diarrhea, and nausea

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Ribbon Worm (Round)
  • Parasitic
  • Slender, flattened body with long snout that has
    dagger-like stingers
  • Live in mostly oceans and feed on other worms and
    mollusks
  • Can grow up to 90 feet long

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Horsehair worm (Round)
  • Parasitic
  • Looks like a coiled horsehair
  • Lives in freshwater -invades insects
  • Matures and lives in water after being passed out
    of the host's body

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Eelworm (Round)
  • Parasitic
  • Tiny, threadlike parasites in plants that attacks
    leaves, stems and roots
  • Can survive very cold, very dry conditions

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Ascaris (Round)
  • Parasitic
  • Found in tropical regions with poor hygiene
    habits
  • Food contaminated with fecal matter is eaten the
    worm goes into the host's intestines walls to the
    lungs, then to the respiratory tract where it is
    swallowed again
  • Causes pneumonia, abdominal pain and diarrhea

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Pinworm(Round)
  • Parasitic
  • Only 3/8 inches long, white body and pointed tail
  • Infects horses, rabbits, humans
  • Goes to the host's intestines and lays eggs
    around anus causing swelling
  • If swallowed, become adults in intestines
  • Can get under fingernails and in the clothing
  • 10 - 60 of children have at some time

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Trichina (Round)
  • Parasitic
  • Eat infected pork that is not cooked well
  • Gets into intestines, blood stream to other parts
    of the body causing swelling in muscles and
    bleeding under the skin
  • Causes diarrhea, nausea, vomiting, fever,
    headache, muscle pain

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Hookworm (Round)
  • Parasitic
  • Burrow through skin, usually bare feet or by
    eating infected food
  • Goes into the intestines causes anemia, leg and
    stomach swelling, itchy hook-shaped patches on
    skin and leg and abdominal pain

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Vinegar Eel (Round)
  • Free living
  • Harmless when swallowed
  • Lives in non-pasteurized cider vinegar and feeds
    on fruit pulp and bacteria that produces vinegar
    from cider

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Filaria (Round)
  • Parasitic
  • Caused by a mosquito in tropics and subtropics
  • Infects blood and causes swelling of limbs

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Leech (Segmented)
  • Parasitic
  • Lives in damp places, streams, lakes and oceans
  • Blood sucker at each end - each with teeth
  • When attaches to host, gives off hirudia which
    prevents blood from clotting
  • Has light sensitive cells called "eyes"-
    sensitive to light, touch, temperature and
    moisture

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