Phylum nematoda (1)

Phylum nematoda (1)

• 1.
  PHYLUM NEMATODA Roundworms
• 2.
  Phylum Nematoda Present inall kinds of environment 12,000 known species The effects of roundworms on crops, domestic animals and humans make it one of the most parasitic animal groups About 50 species are plant and animal parasites that cause damage
• 3.
  Ascaris The large roundwormof humans Live in host’s intestines and eggs pass out feces Extremely resistant to adverse conditions Present in Uncooked veggies, soiled fingers or toys Make their way up through trachea and get swallowed again so that they can grow to maturity in the intestines Cause allergic reactions and intestinal blockage.
• 5.
  Hookworms Hook into intestinalwall Feed off host’s blood causing anemia In children can cause retarded mental and physical growth Travels through the blood to the lungs and into the throat where it is swallowed Eggs are shed in hosts feces and hatch on warm moist soil Larvae then bore through the feet of a new host
• 7.
  Trichina worm Cause lethaldisease trichinosis Humans get by eating undercooked pork that is contaminated with trichina Penetrate blood vessels and any tissue or space
• 9.
  Pinworms Cause little disease,but most common Live in large intestine and migrate to anal region to lay eggs Most worms found by viewing feces under a microscope, but pinwarm can be found by scotch tape method.
• 11.
  Filarial worm Usually foundin people in tropical countries Live in lymphatic system Cause inflammation and obstruction of the lymphatic system – Example: elephantitis.
• 13.
  By: Meru,Tara,Mazi,Fari…. BS 111…. 6Th semester….