Worms (mostly parasitic) - PowerPoint PPT Presentation

Worms (mostly parasitic)

Or the reasons you need to make sure you wash your hands and cook your meat 

• 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

• 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

• 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

• 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

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

• 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

• 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

• 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

• 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

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

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

• 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