D Lat Um example essay topic

Tapeworm Infestation Charlotte Cox Causative agent: Tapeworms are parasitic Helminths of the Phylum Platyhelminths (Flatworms) and Class Cestodes. They include Taenia (beef tapeworm), Taenia soli um (pork tapeworm) and Diphyllobothrium lat um and Echinococcus granulosum. Anatomy: Scolex (head) with suckers, sometimes hooks. Proglottis -body segments continuously produced by the scolex which contain both testes and ovaries that mature as they move away from scolex to produce eggs. Taenia tapeworms can live up to 25 yrs. and grow to 18 ft. D. lat um have been found as long as 32 ft. and can produce millions of eggs per day. Tapeworms lack a digestive system but obtain food by absorbing it through their cuticle.

Diseases and Symptoms: Usually, none at all - in fact, infection might never be known. Can cause blockage in digestive tract, appendicitis. If the eggs hatch in a human, the larvae may cross the intestinal lining and enter the bloodstream, migrate to different organs in the body and develop into (5 mm. - 8 in. ). D. lat um larvae that infect people are called. Depending on location and number of, pathology can result. Ex: Cysticerosis- (Taenia genus): eyes - blindness; spinal chord - paralysis; brain- with similar symptoms to brain tumor, causing traumatic neurological damage.

Persons of Scandinavian heritage are susceptible. Diphyllobothriasis - (D. lat um): Abdominal distention, flatulence, cramping, diarrhea and sometimes anemia parasite has a high affinity for vitamin B 12) Hydatidosis - (E. granulosum): Instead of, egg develops into a. Have been found large enough to contain four gallons of fluid. Damage is due to cysts large size in vulnerable areas (brain, bone) or rupture of cysts, leading to development of many daughter cysts. Rupture may cause anaphylactic shock. Infection is most often seen in people who raise sheep or hunt / trap animals.

Diagnosis: Identification of eggs or proglottis in feces, immunologic tests, radiologic tests (CAT, MRI) to diagnose presence of. Prophylaxis: meat inspection, cooking meat thoroughly, treat non-pathogenic cases therapeutically to avoid spread of disease, better personal hygiene, avoid use of human sewage as fertilizer. Treatment: T., T. soli um and D. lat um - Niclosamide or Praziquantel; D. lat um - surgical removal of hydatid cyst; E. granulosum - Albendazole. Tapeworm T.T. soli umD. lat um E. granulosum Definitive host human humans only mostly humans, bears Dogs, coyotes Intermediate host mainly cattle humans and pigs fish humans, deer, sheep Questions What is the intermediate hose in Taenia soli um? 1) dogs 2) cattle 3) pork 4) fish Which is not a disease of tapeworms? 1) 2) anemia 3) hydatid cyst disease 4) severe weight loss / excessive hunger True or False: Ingesting the cysticercus of a tapeworm is more likely to cause disease than ingesting tapeworm eggs.

What are three ways to diagnose tapeworm infestation? radiologic tests immunologic tests fecal examination True or False: Tapeworm infestation can be an example of commensalism. l.