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87 Cards in this Set
- Front
- Back
Special sense organs in roundworms |
Amphids |
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Thick, flexible outer covering of a roundworm; shed during juvenile growth stages |
Cuticle |
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One of the main differences in the nervous system of a flatworm and a roundworm is that the roundworm has this |
Nerve ring |
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A hollow, fluid-filled cavity that is partially lined by mesoderm |
Pseudocoelom |
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The name for inflammation of the lining of the abdominal cavity |
Peritonitis |
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One of the main sources of contamination for almost all parasitic roundworms in third world countries |
Water |
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Term describing animals with three fundamental cell layers |
Triploblastic |
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One of the main traditional sources for trichinella infestation in humans |
Pork |
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Roundworm eggs are able to survive environmental ____________ |
Extremes |
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Described as a disease right out of the Old Testament causing fiery pain in the legs and feet as it erupts |
Guinea worm |
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The Nematode that attacks soybeans is thought to be brought in from this country |
China |
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The most common parasitic worm infection in people worldwide; also known as "wandering worms" |
Ascaris |
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A type of hookworm infestation where the worms bore holes into your skin and make tunnels |
Larva migrans |
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The Greek meaning of the word "nematos" |
Thread |
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The most life-threatening canine worms |
Heartworms |
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Roundworms have a short _______ for waste compaction |
Rectum |
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Condition described as swollen tissue caused by obstruction of the lymph fluid |
Lymphedema |
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One reason why hookworms are spread skin easily in Africa is because they do not have these |
Shoes |
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Both Nematodes and members of Platyhelminthes display this symmetry |
Bilateral |
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Causes anal itching and is often seen in children |
Pinworms |
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Animals that have a true body cavity |
Coelomate |
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Interconnected glandular cells making up the excretory system of a roundworm |
Renette cells |
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Disease that involves thickening and hardening of the skin; often a result of Filarial Worm infection |
Elephantiasis |
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Parasitic nematode worms that can cause a potentially serious infection; best known intermediate host is pigs |
Trichinella |
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Roundworms have great __________ importance |
Ecological |
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Bloodsucking roundworms living in the small intestine; live in warm, moist soils and can penetrate the soles of your feet |
Hookworms |
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Most species of roundworms differ in the size of the male and female organism. This is called |
Dimorphism |
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Intermediate hosts of a canine or feline heartworm |
Mosquitoes |
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Roundworms are good for the soil because they add nutrients and ______________ |
Aerate the soil |
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Number of digestive tract openings on a roundworm |
Two |
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Means form |
Eidos |
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Are cylindrical, unsegmented worms that are tapered at both ends |
Roundworms |
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Serves as a hydrostatic skeleton |
Pseudocoelom |
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A series of canals or tubules or called renette cells |
Excretory system |
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Most use _________ fertilization |
Internal |
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A big source in biology study |
Caenorhabditis elegans |
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Plnnat nematodes |
Root-knot nematode and cyst-nematode |
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Ways plant nematodes can be moved |
Tractors, wind, and heavy rain |
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Ascaris lumbricoides |
Giant roundworms |
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How long do giant roundworms stay in the lungs |
2 weeks |
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The scientific name for the Nematode that causes pinworms in humans |
Enterobius vermicularis |
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Common symptoms of pinworms |
Anal itching |
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How big are pinworms and what do they look like |
A quarter of an inch; small white thread |
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How are pinworms transmitted |
Person to person via fomites |
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What do female pinworms do at night |
Crawl out and lay eggs |
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How long can pinworms eggs survive on a surface |
2 to 3 weeks |
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How are pinworms treated |
Dewormer; pyrantel |
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How common is pinworms in the USA |
Most common worm infection |
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Scientific name of the most common form of trichinella infestation in humans |
Trichinella spiralis |
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Common animal hosts of trichinella species |
Mammals |
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How do humans usually contract trichinosis |
By eating raw, uncooked meat |
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Scientific name of the most common form of filarial worm infestation in humans |
Wuchereria bancrofti |
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Caused by filarial worm infection |
Lymphatic filariasis lymphedema |
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What countries do we most often see problems with filariasis |
Africa, Subtropical and tropical areas, Brazil, Haiti, and India |
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Ways that children can become infected with hookworms |
Walking barefoot, playing in soil, breastfeeding |
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How are hookworms spread |
Through feces |
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How do hookworms get their name |
Appendages around their mouth |
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Symptoms of hookworm infection |
Itching, rash, stomach pain, and diarrhea |
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Have a blind gut with a single opening |
Flatworms |
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Use Protonephridia for excretion |
Flatworms |
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Phylum Platyhelminthes |
Flatworms |
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Acoelomates which lack a true body cavity |
Flatworms |
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External body covering called tegument or neodermis |
Flatworms |
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Least complex of all types of worms |
Flatworms |
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Most species are monoecious |
Flatworms |
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Larval stages often occupy an intermediate host before reaching adulthood in the definitive host |
Flatworms |
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Head is often modified for attachment to the host(scolex) |
Flatworms |
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Includes planaria, Dugesia |
Flatworms |
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Includes tapeworms |
Flatworms |
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Includes monogenetic and digenetic flukes |
Flatworms |
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Mouth opens into the pharynx |
Flatworms and roundworms |
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Ganglia serve as a simple brain |
Flatworms and roundworms |
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Ocelli in some species |
Flatworms and roundworms |
|
Triploblastic |
Flatworms and roundworms |
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Exhibit bilateral symmetry |
Flatworms and roundworms |
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Have a pseudocoelom |
Roundworms |
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Have a digestive tract with two openings |
Roundworms |
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Have sense organs called amphids |
Roundworms |
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Use renette cells for excretion |
Roundworms |
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Tube-within-a tube body plan |
Roundworms |
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No larval stage; usually 4 juvenile stages are separated by a molting |
Roundworms |
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Most species are dioecious and show sexual dimorphism |
Roundworms |
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Phylum Nematoda |
Roundworms |
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Outer body covering is a thick, flexible cuticle |
Roundworms |
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Includes Trichinella |
Roundworms |
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Includes Ascaris |
Roundworms |
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Includes hookworms |
Roundworms |