1 / 45

PHYLUM

PHYLUM. ?. NEMATODA. ?. Common Name. Round Worms. Biology: pg 406-407. BDOL: pg 731-733. Nematoda. # of Species?. 80,000+. Life Style?. 50% parasitic. 50 species infect humans alone. Where Are They Found?. 90,000 in 1 apple. 10 million / meter 2 ( ubiquitous ). Nematoda.

travisk
Download Presentation

PHYLUM

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. PHYLUM ? NEMATODA ? Common Name Round Worms Biology: pg 406-407 BDOL: pg 731-733

  2. Nematoda # of Species? 80,000+ Life Style? 50% parasitic 50 species infecthumans alone. Where AreThey Found? 90,000 in 1 apple 10 million / meter2(ubiquitous)

  3. Nematoda One way tube Features? The first “anus” No circular muscles Eyespots (free-living) Dioecious (means?) - Separate male & females

  4. Nematoda Body Cavities? (none) - Name? - Example Organism? Planarian Mesoderm Endoderm Acoelomate Ectoderm

  5. Nematoda Body Cavities? - Name? - Example Organism? Pseudocoelom Ascaris

  6. Nematoda Body Cavities? - Name? - Example Organism? Earthwormor Human Coelom

  7. Nematoda Pet Infections - Ascarids - Hookworms

  8. Nematoda Ascarids -Toxocara cati Cats

  9. Nematoda Ascarids -Toxocara canis Dogs

  10. Nematoda Primarily dangerous to human children Ascarids Raccoon -Baylisascaris procyonis - 70 to 90% infection rate - Eggs have long-term viability - Low infectious dose needed - Larval Migrans in humans

  11. Nematoda Toxocariasis(TOX-o-kah-RYE-us-sis)Human ascaridinfection from pets.10,000 cases / year Ascarids Larval Migrans? - Larva in wrong host - tries to complete its life cycle anyway - Larva starts to migrate – gets lost – often in the eye or brain - Larva dies - causing extreme inflammatory reaction

  12. Nematoda Ascarids Larval Migrans - Most victims are children – consuming worm eggs in soil - External Links:Cutaneous, visceral & ocular larva migrans (ex: Whipworm) Baylisascaris procyonis (roundworm from raccoons) Dirofilaria immitis (heartworm from dogs) Strongyloides stercoralis (threadworm from dogs)

  13. Nematoda Scientific name of ourdissection specimen? Ascarids Ascaris lumbricoides -What protects it? Cuticle -Number infested? 1 billion

  14. Nematoda Ascaris lumbricoides Life Cycle? Egg

  15. Ascaris lumbricoides Nematoda - Bolus (fatal)

  16. Nematoda Worm ID? Hookworms Note Pharynx

  17. Nematoda Scientific name? Hookworms Ancylostoma duodenale Life Cycle? - Larva in warm soil enter feet - Skin “trails” & “ground itch” - To blood, to lungs, then swallowed - Larvae attach to intestine & mature - Adults mate & release eggs - Eggs leave with feces - hatch in soil

  18. Nematoda Stray Facts &Vocab Terms Hookworms Ancylostoma duodenale - 10 – 15 mm - Hook-shaped - Cutting plates - Anticoagulant - Anemia if 25 – 50 worms - May live several years - 1,500+ infestations

  19. Nematoda Hookworms Ancylostoma duodenale Symptoms? - Anemia - Retarded mental & / or physical growth - Low energy (“shiftless & lazy”) - Lung cough

  20. Nematoda Hookworms Ancylostoma duodenale Egg

  21. Nematoda Hookworms Ancylostoma duodenale Interrupt The Life Cycle By: - Don’t Go Barefoot - Avoid Warm, Moist, Soil - Improve Sanitation In Area

  22. Nematoda ScientificName? Pinworms Enterobius vermicularis -Size: 5 – 10 mm -Glow w/bright light - Female dies after laying eggs -10,000 eggs -1 month to mature -Scotch Tape Test -Symptoms: Itching & Nervousness -400 million infested

  23. Nematoda Pinworms Enterobius vermicularis Eggs

  24. Nematoda Drancunculus mediensis Guinea Worms What Is It?

  25. Nematoda Guinea Worms What is going on here?

  26. Nematoda Guinea Worms Drancunculus mediensis Why mostly the feet & lowerlimbs?

  27. Nematoda Guinea Worms Drancunculus mediensis

  28. Nematoda Is There An Intermediat Host? Guinea Worms

  29. Nematoda Guinea Worms YES !!!TheCopepod(cyclops) Drancunculus mediensis

  30. Nematoda “Name That Disease !!!” I’m waiting.... I’m STILL waiting.... Too late, it’s....

  31. Nematoda ELEPHANTIASIS ! Now, WhatCaused It?

  32. Nematoda OK, SoWhat IS It? TheFilarial Worm ! This Did !!!

  33. Nematoda Scientific name ofthe Filarial Worm? Wuchereriabancrofti That’s a HEEL ELEPHANTIASIS

  34. Nematoda - LYMPHOEDEMA - ELEPHANTIASIS Edema?

  35. Nematoda - ELEPHANTIASIS TheFilarial Worm TheFilarial Worm

  36. Is There A Vector? The Mosquito

  37. ELEPHANTIASIS

  38. Mosquito transmittedracoonfilarial worm in human eye. (Larval Migrans) River Blindness - Cause? - 18 Million People- Blackfly Eggs in water

  39. Nematoda What Are These? These are muscle fibers.......

  40. Nematoda Trichina Worms This is your tongue. What are inthe cysts?

  41. Nematoda Trichina Worms Scientific Name? Trichinella spiralis

  42. Nematoda Trichina Worms Trichinella spiralis http://www.trichinella.org/images/biology/lifecycle.gif Disease Name? Trichinosis Wild local host? Bear

  43. How do I tell if I have a parasite? Abdominal pain, Allergies, AnemiaChronic fatigue, Constipation, Diarrhea Eating without feeling full Gas and bloating, Headaches Irritable bowel syndrome Itching (anus or other places) Joint and muscle aches and pains Lethargy, Loss of appetite Nervousness, Skin conditions Sleep disturbances Teeth grinding

  44. How can a parasite hurt me? Destroy cells faster than cells can be regenerated. Produce toxic substances and allergic reactions. Irritate and invade body tissue, including the skin and intestinal lining. Put pressure on body organs and cause organ obstructions. Depress immune system function while activating immune system response. Result in malabsorption of nutrients.

More Related