Parasites

Question 1

nucleus, multiple chromosomes, 80S ribosomes, membrane sterol

Answer 1

parasite characteristics

Question 2

ectoparasites: scabies and lice; endoparasites: intestinal worms, flukes

Answer 2

classification

Question 3

ameba, flagellate, or apicomplexa (sporozoa)

Answer 3

protozoa (unicellular)

Question 4

nematodes (roundworms) platyhelminthes (flat worms)

Answer 4

metazoa (multicellular)

Question 5

intestinal and tissue worms

Answer 5

nematodes

Question 6

cestodes (tapeworms) and trematodes (flukes)

Answer 6

platyhelminthes

Question 7

organism in which the parasite lives

Answer 7

host

Question 8

organism in which the sexually mature worm lives

Answer 8

definitive host

Question 9

organism in which the parasite live for part of its life

Answer 9

intermediate host

Question 10

organism which carries the parasite but shows no ill effects

Answer 10

reservoir host

Question 11

organism which conveys the parasite from one host to another

Answer 11

vector

Question 12

metazoa; 2nd most common intestinal round worm, orofecal spread

Answer 12

ascaris lumbricoides

Question 13

protozoa-ciliated; orofecal spread from pigs, explosive diarrhea

Answer 13

balantidium coli

Question 14

chinese liver fluke, far east, feeds on bile, causes cholangitis

Answer 14

clonorchis sinensis

Question 15

sporozoa, orofecal spread, opportunistic infection in AIDS, diarrhea

Answer 15

cryptosporidium parvum

Question 16

cestode; longest freshwater tapeworm, use the vit B12 in the ileum

Answer 16

diphyllobothrium latum

Question 17

amebic protozoa, orofecal spread, amebic dysentery stool with blood

Answer 17

entameba histolytica

Question 18

metazoa, most common intestinal parasite-pinworms, nocturnal itching

Answer 18

enterobius vermicularis

Question 19

trematode; snail-intermediate host; eating contaminated watercress

Answer 19

fasciola hepatica

Question 20

flagellate protozoa, orofecal spread, beaver fever or hiker’s diarrhea

Answer 20

giardia lamblia

Question 21

cestode-dwarf tapeworm, orofecal spread, diarrhea and weight loss

Answer 21

hymenolepis nana

Question 22

flagellate protozoa, phlebotomous sand fly bite, mucocutaneous ulcers

Answer 22

leishmania brasiliensis

Question 23

protozoa, phlebotomous sand fly bite; kala azar-hepatosplenomegaly

Answer 23

leishmania donovania

Question 24

nematode-eye worm, chrysops fly bite, calabar skin swellings

Answer 24

loa loa

Question 25

ameba protozoa; warm waters, travels up the nose, fatal encephalitis

Answer 25

naegleria fowleri

Question 26

metazoa-hookworm, orofecal spread, feeds on blood-iron def anemia

Answer 26

necator americanus

Question 27

river blindness spread by the simulium blackfly

Answer 27

onchocerca volvulus

Question 28

trematode-lung fluke, snails and crabs are intermediate hosts, cough

Answer 28

paragonimus westermani

Question 29

most deadly form of malaria, female anopheles mosquito, convulsions

Answer 29

plasmodium flaciparum

Question 30

ectoparasite, direct contact, itching in finger webs at night

Answer 30

sarcoptes scabeii

Question 31

bladder parasite causing blood in the urine; snail is intermediate host

Answer 31

schistosoma hematobium

Question 32

infects the gut and the liver; orofecal spread

Answer 32

schistosoma mansoni

Question 33

nematode-threadworm, orofecal spread, intense nocturnal perianal itching

Answer 33

strongyloides stercoralis

Question 34

cestode-tape worm, spread by eating undercooked infested beef/pork

Answer 34

taenia saginata/solium

Question 35

apicomplexa protozoa, rats are the vector, cats are carriers, miscarriages

Answer 35

toxoplasma gondii

Question 36

nematode-pork roundworm, orofecal spread, myalgia and periorbital edema

Answer 36

trichinella spiralis

Question 37

nematode-whipworm, orofecal spread, associated with rectal prolapse

Answer 37

trichuris trichuria

Question 38

flagellate protozoa, sexually transmitted, frothy vaginal discharge

Answer 38

trichomonas vaginitis

Question 39

flagellate protozoa, reduviid bug bites, chagas dz (mega esophagus)

Answer 39

trypanosoma cruzi

Question 40

flagellate protozoa, tsetse fly bites, causes sleeping sickness

Answer 40

trypanosoma gambiense

Question 41

metazoa-tissue worm, spread by culex mosquito causes elephantiasis

Answer 41

wuchereria bancrofti