Gi-micro – Microbiology Test Questions – Flashcards
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Unlock answers| What is the common name, Pathogenesis and Manifestations of Enterobius vermicularis |
Pinworm Path: Only humans Perianal egg laying Autoinfection Signs: Perianal Itching Scotchtape Test |
| What is the common name, Pathogenesis and Manifestations of Trichuris trichiara |
Whipworm Path: Football-shaped eggs need 10 days Signs: Ulcers/Hemorrhage Prolapse Rectum |
| What is the common name, Pathogenesis and Manifestations of Ascaris lumbricoides? |
Giant Roundworm Path Eggs need 2-3 weeks to form Embryonated eggs Require lung migration and Reswallowing Signs Asthma Pneumonitis Bile Ductus, Pancreas, Esophogus Bowel Obstruction |
What is the common name, Pathogenesis and Manifestations of Necator americanas or Ancylostoma duodenale What hookworm only infects the cutaneous tissue? |
Hookworms Path Skin penetration Extraintestinal migration Signs Heme: Iron-def anemia, Hypoalubumin, Cardiac flailure Lung: Pneumonia /Eosinophilia GI: Intestinal Hemorrhage Derm: Erythema, Macules, Papules Only Cutaneous: Ancylostoma caninus |
| What is the common name, Pathogenesis and Manifestations of Strongyloides stercoralis |
Small Roundworms Path Free living also Skin penetration-> Lung -> Small bowel Rhabdiform larve differentiate into filariforms to allow autoinfections Signs Disseminated Hyperinfection in Immunosuppressed
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| What is the common name, Pathogenesis and Manifestations of Trichinella spiralis |
Trichinosis Path Undercooked pork Larvae-> Muscle Converts muscle cells into nurse cells Signs Muscle edema Facial Edema |
| What is the common name, Pathogenesis and Manifestations of Wuchereria bancroftii and Brugia malayi? |
Filarial Worms Path Mosquito-> Lymphatics Microfilariae(Embryos) for reuptake by vector Signs Pulmonary Eosinophilia Elephantiasis |
| What is the common name, Pathogenesis and Manifestations of Drancunculus medinesis |
Guinea Worm Path: Crustaceon Swallowing Intestine-> Gravid Females-> skin Signs Ulcers from gravid females |
| What is the common name, Pathogenesis and Manifestations of toxocara |
Path Dogs and cats with Verticle transmission Infect mostly children Signs Ocular larva migrans Visceral larva migrans: major organs
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| What is the vector and manifestations of loa loa? |
Mango Flies Sucutaneous migration(eye) |
| What is the common name, Pathogenesis and Manifestations of Schistosoma mansoni, japonicum, hematobium? |
Blood Flukes Path Snail is Intermeadiate host Cercaria penetrate skin-> Veins Liver Maturation TNF signals egg production Eggs-> Granulomas/Fibrosis Manifestations Portal HPTN(mansoni and japonicum) Hepatosplenomegaly Cor pulmonale Colorectal Polyps(mansoni) Hematuria(hematobium eggs in bladder) |
| What is the common name, Pathogenesis and Manifestations of Tenia Saginata? |
Tapeworm Path Human is definitive host Proglottids->eggs->Cattle->Oncospheres->larvae larvae->muscle->cysticercus->Human *Eggs, Cysticercus and Adult survive for years Signs: Asymtomatic |
| What is the common name, Pathogenesis and Manifestations of Tenia solium? |
Pork Tapeworm Path Humans definite and intermeadiate hosts Cysticercus occurs in humans and animals Signs Epilepsy, Blindness Brain, liver, lung cysticercii
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| What is the common name, Pathogenesis and Manifestations of Echincocus granulosus? |
Small Tapeworms Path Dogs-> humans Signs Fluid filled cysts in liver and lung(hydratid cyst) |
| What is the common name, Pathogenesis and Manifestations of Diphyllobothrium lattum? |
Fish Tapeworm Path Undercooked fish Sign B12 deficiency |
| What are the structural features of Cestodes(tapeworms)? |
Scolex: head containing attachment apparati Proglottids: Segments that break off to release eggs Hermaphrodites: Male and female hardware in each proglottid |
| Which tenia worm can infect vegetarians |
| Tenia solium |
| What is the vector and manifestations of Onchocerca vulculus? |
Black Fly Dermititis and Blindness(river blindness) |
Which can affect the lungs? Which can affect the Eyes? Which can affect the liver? |
Lungs: Ascaris lumbricaloides(to mature larva) Strongyloides stercoralis: larva migrate through lungs before intestine Hookworms(larva migration) Mansoni or Japonicum(Late stages) Tenia solium: Cystercosis Echincocus granulosus: Lung Cysts Eyes: Loa loa Onchocerca Vulvulus Toxocara: Ocular larva migrans Tenia solium Liver Schistosomiasis (Eggs->Granuloma->Fibrosis) Tenia solium: Cystercosis Echincocus granulosus(Hydratid Cysts) |
What is the Genus and Species for Pinworm Whipworm Small Roundworm Giant Roundworm Hookworm Pork Tapeworm Beef Tapeworm Filarial Worms Guinea Worms Fish Tapeworm Small Tapeworm River Blindness Worm Liverworm Bladderworm |
Pinworm: Enterobius vermicularis Whipworm: Trichurus Trichiara Small Roundworm: Strongyloides stercoralis Giant Roundworm: Acaris lumbricoides Hook Worm: Nector Americansus Ancylostoma duodenale Pork Tapeworm: Tenia Solium Beef Tapeworm: Tenia Saginatum Filarial Worms: Brugia Malayi Wuchereria Bancrofti Guinea Worms: Drancunculus medinesis Fish Tapeworm: Diphyllobothrium lattum Small Tapeworm: Echincocus granulosus River Blindness: Ochocerca volvulus Liverworm: Schistosoma mansoni/japonicum Bladderworm: Schistosoma haematobium |
Which worm need 2-3 weeks to mature its eggs? Which worms can autoinfect? Which worm is induced by TNF to produce eggs? Which worm has a snail reservoir? Which worm has a crustaceon reservoir? Which worm has the most longevity? Which requires sheet and clothing cleaning to eradicate? Which worm has football shaped oocysts? Which worm covers itself with host antigen to evade the immune system |
Mature eggs: Ascaris lumbricalis Autoinfection: Enterobius vermicularis Strongyliodes Stercoralis TNF->Eggs: Schistosoma Snail: Schistosoma Crustaceon: Guinea worm Longevity: Tenia staginatum Cleaning: Enterobius vermicularis Football Oocytes: Trichuris trichiara Host antigen: Schistsomes |
