Nematodes

Nematodes are also known as
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Terms in this set (98)
Nematodes are also known as
Roundworms
Enterobius vermicularis eggs
Image: Enterobius vermicularis eggs
Enterobius vermicularis is also known as
Pinworm or seatworm
Most common helminth infection in the US is
Enterobius vermicularis
Infectious stage of Enterobius vermicularis is
Eggs found on perinanal region
Diagnostic stage of Enterobius vermicularis is
Eggs collected via cellophane tape test
Enterobius vermicularis is transmitted
When eggs are transferred hand to mouth
Trichuris trichiura is also know as
Whipworm
The infectious stage of Trichuris trichiura is
Ingestion of embryonated eggs from fecal contamination
The diagnostic stage of Trichuris trichiura is
Eggs in feces
Trichuris trichiura eggsAscaris lumbricoides is also known asLarge intestinal roundwormAscaris lumbricoides larvae migrate through theLiver and lungs to reach the intestinesThe infectious stage of Ascaris lumbricoides isIngestion of mature eggsThe diagnostic stage of Ascaris lumbricoides isEggs, sometimes adults, in fecesAscaris lumbricoides fertilized eggAscaris unfertilized eggTrichinella spiralis is also known asTrichina wormTrichinella spiralis is transmitted throughUndercooked bear or porkThe infectious stage of Trichinella spiralis isIngestion of matured eggsThe diagnostic stage of Trichinella spiralis isEncysted larvae found in muscleTrichinella spiralis encrypted larvae in muscleTrichinella spiralis encrypted larvae cells are also calledNurse cellsNecator americanus is also known asNew world hookwormThe infectious stage of Necator americanus isFilariform larvae in soil penetrating through host skinThe diagnostic stage of Necator americanus isEggs found in fecesGround itch is caused byHookwormT/F: Necator americanus and Ancylostoma duodenale eggs are indistinguishable from each otherTrueNecator americanus is found inUS, West Africa, Asia, and South PacificT/F The lifecycle of the hookworm includes the lungsTrueThe mouth of Necator americanus containsCutting platesAncylostoma duodenale is also known asOld world hookwormAncylostoma duodenale is found inEurope, Brazil, Mediterranean, and AsiaThe infective stage of Ancylostoma duodenale isFilariform larvae found in soil, enters through skinThe diagnosis stage of Ancylostoma duodenale isEggs found in fecesAncylostoma duodenale mouth containsTeethHookworm eggsAncylostoma duodenale scolexNecator americanus scolexStrongyloides stercoralis is also known asThreadwormThe infective stage for Strongyloides stercoralis isRhabditiform larvae in soil penetrating host skinThe diagnostic stage for Strongyloides stercoralis isLarvae in fecesT/F Strongyloides stercoralis contains lung migration in lifecycleTrueStrongyloides stercoralis larvae have an ___________shaped esophagusHourglassT/F Strongyloides stercorales is capable of asexual reproductionTrueLargest developed worm in USAscaris lumbricoidesWhat does corticated mean?Thick albuminous coatWhich species has a thick coat of albumin around the egg?Ascaris lumbricoidesWhich parasite can coexist with Trichuris trichiura?Ascaris lumbricoidesTwo characteristics of the hookworm egg areThin eggshell and cleaved embryoStrongyloides stercoralisDracunculus medinensis is also known asGuinea wormThe infective stage of Dracunculus medinesis isLarvae infected copepod (Cyclops) is ingested with waterThe diagnostic stage of Dracunculus medinesis isAdult in skin ulcer, release in cold waterA skin ulcer that bursts in cold water and releases the adult worm is indicative of which species?Dracunculus medinesisThe largest nematode in humans in the world isDracunculus medinesisDirofilaria are commonly known asHeartwormToxocara are intestinal roundworm found inDogs and catsBaylisascaris procyonis is also known asRaccoon roundwornAnisakis simplex are commonly found inFishHumans are a ______ host for AnisakisDead endDracunculus medinesisDirofilariaToxocaraA rope-like capsule surrounding the egg is characteristic of which genus?ToxocaraBaylisascaris procyonisAnisakis simplex could be hiding in which delicious food?SushiWuchereria bancrofti is commonly known asBancroft's filariaThe infectious stage on Wuchereria bancrofti isFilariform larvaeWuchereria bancrofti is transmitted throughthe bite of a mosquitoThe diagnostic stage of Wuchereria bancrofti isMicrofilariae in bloodThe major clinical manifestation of Wuchereria bancrofti isElephantiasisThe mosquitos responsible for Wuchereria bancrofti transmission areCulex, Aedes, AnophelesT/F Wuchereria bancrofti is sheathedTrueT/F Wuchereria bancrofti nuclei do not extend to tipTrueWuchereria bancrofti microfilariae in bloodWhat is the common name for Brugia malayi?Malayan filariaWhat is the infectious stage of Brugia malayi?Filariform larvaeHow is Brugia malayi transmitted?Mosquito biteWhat mosquitos are responsible for Brugia malayi?Anopheles and MansoniaThe diagnostic stage of Brugia malayi?Microfilariae in bloodWhere is Brugia malayi found?Far EastBrugia malayiT/F Brugia malayi is sheathedTrueT/F Brugia malayi have only two nuclei in the tip of the tailTrueLoa Loa is commonly known asEyewormOnchocerca volvulus is commonly known asRiver blindnessThe infective stage of Onchocerca volvulus isFilariform larvae entering through bite from Simulium black flyThe diagnostic stage of Onchocerca volvulus isMicrofilariae in skin snipsT/F Onchocerca volvulus has no periodicityTrueGive two defining characteristics of Onchocerca volvulus.No sheath and tail bent at 90 degree angleOnchocerca volvulusThe infectious stage of Loa loa isFilariform larvae entering through bite from Chrysops (mango) flyThe diagnostic stage of Loa loa isMicrofilariae in bloodTwo defining characteristics of Loa loa areSheathed and nuclei are present in tailLoa loaThe defining characteristics of Mansonella perstans areNo sheath, tapered tail, and nuclei to end of tailThe defining characteristics of Mansonella streptocerca areNo sheath, tail bent like fishhook