NematodeNematodeBy Leon And Lamont’e ft. DougBy Leon And Lamont’e ft. Doug

NematodeNematode• Roundworms that has long slender bodies that

taper at both ends.• Length less than 1mm to 120mm (4ft).• Food enters the digestive tract with two opening.• Digested material is eliminated from the anus.• Have Separate sexes and are covered by a

protective, noncellular layer called the cuticle. • 150 species of roundworms are parasites of plants

and animals.

• Most kinds of roundworms live freely in soil, water, dead plants, or dead animals

• Reproduce by laying eggs

Nematode-AscarisNematode-Ascaris• Parasite that lives in the

intestines of pigs, horses and humans.

• Feed on the food that passes through the intestines of there host.

• Females grow up to 30cm(1ft)

• Produce up to 200,000 eggs everyday

• If severely infected the larvae in the lungs can back air pressure and cause bleeding from small blood vessels.

AscarisAscaris

• Kingdom: Animalia

• Phylum: Nematoda

• Class: Secernentea

• Order: Ascaridida

• Family: Asarididae

• Genus: Ascaris

• Species: A. lumbricoides

Nematode-hookwormsNematode-hookworms• Hookworms- a small roundworm

that enters the bodies of human beings and some animals through the skin.

• size from 5 to 11 millimetres (0.2 to 0.4 inch)

• Live as parasites in the intestines.

• Sucks up blood and tissue fluids.• Cause anemia (a shortage of

red blood cells).• cause an itchy, red patch on

human skin called creeping eruption

HookwormHookworm

• Kingdom:AnimaliaPhylum:NematodaClass:SecernenteaOrder:Family:AncylostomatidaeGenus:Necator/Ancylostoma

Nematode-Trichina Nematode-Trichina • Trichina- a small roundworm that

causes the disease trichinosis• measure between 1.4 mm and 1.6

mm long • Parasite- feed on animals.• Adults live embedded in the walls of

the hosts intestine• The Produe larvae that travel

through the bloodstream to the muscle where they form cysts.

• People become infected when they eat undercooked meat usually pork that is contaminated with cysts.

• After they are eaten, the cysts release the larvae (early form of the worms) which burrow into the intestinal wall and mature into adults.

Trichinella Trichinella

• Kingdom Animalia Phylum Nematoda Class Adenophorea Order Trichocephalida Family Trichinellidae Genus Trichinella

Nematode-PinwormNematode-Pinworm• Pinworm- Most common

round parasite of humans in the united states

• Infects 16% of adults 30% kids

• Don’t cause any real diseases

• 5-10mm (0.2-0.4in)in length

• Females migrate out and lay eggs

• which become infectious in soil or in an intermediate host before infecting humans

Pinworm Pinworm

• Kingdom Animalia Phylum Nematoda Class Secernentea Order Ascaridida Family Oxyuridae Species Enterobius vermicularis

• Enterobius vermicularis

•

Nematode-Filarial wormNematode-Filarial worm• Disease-cause-round worms

that infect over 250 million people in tropical countries

• Most dangerous filarial worms in the lymphatic system

• 100mm(4in)• Blocked-the lymphatic

vessels causing fluid to accumulate in the limbs.

• They can be seen in the blood near the body surface of the host (the animal in which the larvae live).

VideosVideos

• http://dsc.discovery.com/videos/life-the-series-videos/?bcid=73073289001

• http://www.fotosearch.com/CSV003/k3980945/

ReferencesReferences• Roundworm | Article | World Book Advanced (Oetinger, David F.

"Roundworm." World Book Advanced. World Book, 2011. Web.  4 Apr. 2011.) • Science Online – ascaris (ascaris." Science Online. Facts On File, Inc. Web.

4 Apr. 2011) • Science Online – pinworm (ascaris." Science Online. Facts On File, Inc. Web.

4 Apr. 2011) • Hookworm | Article | World Book Advanced (Oetinger, David F. "Hookworm."

World Book Advanced. World Book, 2011. Web.  4 Apr. 2011)• Filaria | Article | World Book Advanced (Oetinger, David F. "Filaria." World

Book Advanced. World Book, 2011. Web.  4 Apr. 2011) • http://www.parasitecleanse.com/hookworms.htm (- Valerie Saxion

"Everybody Has Parasites"; Bronze Bow Publishing 2003) • Modern Biology Book, Holt,Rinehart and Winston pg.715-718 (Holt, Rinehart,

and Winston. Modern Biology. Auston: Harcourt Classroom Education, 2002)• Rett, D. 2003. "Enterobius vermicularis" (On-line), Animal Diversity Web.

Accessed April 04, 2011 http://animaldiversity.ummz.umich.edu/site/accounts/information/Enterobius_vermicularis.html.

ReferenceReference

• Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2008. The Animal Diversity Web (online). Accessed April 04, 2011 at http://animaldiversity.org

• http://pioneerunion.ca.schoolwebpages.com/education/components/scrapbook/default.php?sectiondetailid=2798&linkid=nav-menu-container-4-13641