Parasites are Cool! A parasite is an organism that gains energy from a host.
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Transcript of Parasites are Cool! A parasite is an organism that gains energy from a host.
Endoparasites are the parasites that live inside the host for example Hookworms.
From contaminated soil
Hookworms live in small intestines – take in 1ml blood/day
Necator americanus.
Scolex with hooksand suckers
Proglotids (segments) filledwith reproduction organs andeggs Tapeworm lives in intestines
Feeds on digested food
Wuchereria bancrofti
Mosquito is the carrier
Causes lymphedema, swelling, which is prevalent in the legs, but sometimes also in the arms. This filaria worm results in Elephantiasis.
Found in Africa
Ascaris lumbricoides – live in the intestines sometimes causes intestinal blockage
Most infections begin with contaminated soil. Eggs can live in soil for years. Rare occurences in United States
Pinworm is an intestinal infection caused by tiny parasitic worms. One of the most common roundworm infections, pinworm infections affect millions of people each year, particularly school kids.
Itching
Ectoparasites are parasite that live on the outside body For example some mites are ectoparasites. Ectoparasites feed or grows from the energy of the host.
Bites
Fleas are the insects from the order Siphonaptera. They are wingless, with mouthparts adapted for piercing skin and sucking blood. Fleas are external parasites, living the blood of mammals and birds.
Ouch!
Several types of mites are associated with cases of skin dermatitis in humans. The tropical rat mite, Ornithonyssus bacoti, is one of the most common house invading species.
Ticks are ectoparasites (external parasites), living on the blood of mammals, birds, and sometimes reptiles and amphibians. Ticks are carriers of a number of diseases, including Lyme disease, Colorado tick fever, Rocky Mountain spotted fever
Tick