1、the main energy sources of parasites are: a、protein b、fat c、carbohydrates d、parasite's motabolites
2、zoonotic parasitosis refers to: a、parasitosis transmitted between arthropods and vertebrates b、parasitosis transmitted between wild animals and domestic animals c、parasitosis transmitted between invertebrates and vertebrates d、parasitosis transmitted between vertebrates and humans
3、after the host is infected by the parasite, the immunoregulatory effect is as follows: a、the immune response is limited to an appropriate level b、the immune response is weak in the early stage c、immune response continues to increase d、strong response to chronic infection
4、what kind of parasite can infect people with its fertilized egg and larvae ? a、taenia solium and trichinella spiralis b、taenia solium and hymenolepis brevis c、fasciolopsis buslik and paragonimus westermani d、schistosoma japonicum and hookworm
5、the worm that cause larva migrans is: a、ascaris lumbricoides b、enterobius vermicularis c、toxocara canis d、ancylostoma duodenale
8、for oral parasites, the most important and simple prevention method is: a、management of feces b、preventive medication c、pay attention to food hygiene d、don't eat raw fruits
9、which of the following descriptions is wrong? a、enterobius vermicularis eggs can enter the digestive tract by breathing b、it is a chance to be infected with tsutsugamushi disease by sitting or lying on the grassland c、infectious ascaris lumbricoides eggs are often found in fresh feces d、drinking dirty or raw water can infect many kinds of parasites
10、in addition to plasmodium falciparum and toxoplasma gondii,the other parasites that cause brain damage include: a、cysticercus and echinococcus granulosus b、hookworm and trichinella spiralis c、filaria and ascaris lumbricoides d、echinococcus granulosus and taenia saginata
12、parasite is defined as： a、any of two commensal organisms b、the beneficiary of two commensal organisms c、the beneficiary of parasitism in two living organisms d、any of two mutualistic organism
13、obligatory parasite is a、a parasite must be parasitized in the special part of the host in its whole life cycle b、a parasite that must parasitize in host or otherwise survive throughout its life cycle c、at least one life cycle period must lead a parasitic life d、a parasite always needs special hosts throughout life cycle
14、the following disease resluted by larvae in human body, which one is not belong to larva migrans a、toxocara canis b、pagumogonimus skrjabini c、ancylostoma duodenale d、angiostrongylus cantonensis
15、which of the following parasitosis does the reservoir hosts play a role in tranmission? a、ancylostomiasis b、schistosomiasis c、enterobiasis d、ascariasis
16、what's the changes of parasites after parasitism? a、some organs degenerate or disappear b、inability to live a free life c、some organs are strengthened or regenerated d、parasites will adapt to their hosts
17、parasitic damages to the host include a、mechanical damage b、immne pathologicla damage c、absorb nutrition d、hypersensitity
18、wihich parasitic infection resulted anemia is not due to immune response a、kala azar b、ancylostomiasis c、malaria d、intestinal fluke disease
19、the parasites that can be found in the peripheral blood include： a、balantidium coli b、plasmodium spp c、cryptosporidium parvum d、filaria
20、the mechanisms by which parasites can survive in immune hosts are： a、immune evasion b、immunosuppression c、sterilizing immunity d、mutation changes the antigenicity or immunogenicity of a parasite
2、in the process of hookworm culture, which of the following is wrong？ a、smear feces evenly to 2 / 3 of the filter strip, and insert the filter strip into the test tube so that the fecal membrane contacts the water surface to keep it moist b、place the test tube in the environment of 20-30 ° c c、add cold boiled water along the pipe wall every day d、after 3 days, hookworm larvae hatching at the bottom of the tube could be observed.
3、appearance and body shape of adults of ancylostirm duodenale is : a、rectilinear b、"s" shape c、flat d、"c" shape
4、appearance and body shape of adults of necator americanus is : a、rectilinear figure b、"s" shape c、flat shape d、"c" shape
5、the teeth on the ventral side of ancylostirm duodenale's mouth part are: a、1 pairs of hook teeth b、2 pairs of hook teeth c、2 pairs of plate teeth d、1 pairs of plate teeth
6、the incisor of the ventral edge of the oral sac of necator americanus is: a、1 pairs of hook teeth b、2 pairs of hook teeth c、2 pairs of plate teeth d、1 pairs of plate teeth
7、the number of eggs laid by ascaris females per day is: a、40 thousand b、300 thousand c、20 thousand d、100 thousand
8、the resistance of ascaris eggs to chemicals is strong, mainly due to： a、the shell of an egg b、ascaroside layer c、protein membrane d、fertilization membrane
9、the main causes of surgical diseases caused by ascaris lumbricoides is: a、larva migration in human body b、adults have the habit of drilling holes c、adult predatory nutrition d、adults secrete toxins
10、in the life history of ascaris lumbricoides, it needs to molt 4 times, and the place of molting is in turn as follows, which one? a、egg, host's small intestine, alveoli, small intestine b、egg, host alveoli, alveoli, small intestine c、egg, host alveoli, liver, small intestine d、egg, host alveoli, small intestine, liver
11、life span of ascaris lumbricoides is a、about 1 years b、about 3 years c、about 5 years d、about 5 years
12、the most common complications of ascaris is a、ascaris appendicitis b、intestinal obstruction c、intestinal perforation d、ascariasis of biliary tract
13、the infection stage of ascaris lumbricoides is ( ) a、newly produced egg, containing 1 egg cell b、after one division, it contains two oocytes c、after the second division, it contains 4 oocytes d、eggs with larvae molted once
14、the phenomenon of migration in human hookworm is seen in a、necator americanus b、ancylostirm duodenale c、ancylostoma brasiliense d、ancylostoma caninum
15、the regional distribution difference between necator americanus and ancylostirm duodenale mainly depends on a、temperature b、humidity c、rainfall d、soil
16、ascariasis patients should be thoroughly treated, otherwise, which complication(s) may occur a、ascariasis of biliary tract b、ascaris intestinal obstruction c、ascaris appendicitis d、intestinal perforation of ascaris lumbricoides
17、the measures taken to prevent food-borne nematodes infection include ( ) a、not eating raw meat b、expell flies and cockroaches c、fecal management d、drinking boiled water
18、the clinical manifestations of filariasis patients in chronic stage are ( ) a、elephantiasis of lower extremity b、elephantiasis scrotum c、hydrocele of tunica vaginalis d、chyluria
19、the severity of trichinosis depends on ( ) a、number of feeding trichinella spiralis cysts b、viability of the spiralis cysts c、location of larvae parasitism d、host immunity to trichinella spiralis
20、infection way and mode of enterobiasis ( ) a、oral infection b、transdermal infection c、retrograde infection d、inhalation infection
03 medical cestodes
unit test 3
1、unarmed scolex is the characteristic feature of – a、echinococcus granulosus b、taenia solium c、hymenolepis diminuta d、taenia saginata
2、which parasite’s egg consist of polar filaments arising from either end of ambrophore – a、taenia solium b、diphyllobothrium latum c、echinococcus granulosus d、hymenolepis nana
3、which tape worm is commonly known as “beef tape worm”? a、taenia solium b、taenia saginata c、echinococcus granulosus d、hymenolepis nana
4、which cestodes does not need an intermediate host? a、dipylidium caninum b、hymenolepis diminuta c、echinococcus granulosus d、hymenolepis nana
5、what is the scientific name of pork tapeworm? a、taenia solium b、ascaris lumbricoides c、wuchereria bancrofti d、enterobius vermicularis
7、eating poorly cooked pork can lead to an infection with: a、taenia solium and trichinella spiralis b、taenia saginata and hymenolepis nana c、trichuris trichiura and hymenolepis diminuta d、diphyllobothrium latum and ascaris lumbricoides
8、the adult tapeworm of echinococcus granulosus is found in the intestine of: a、humans b、sheep c、dogs d、cattle
9、in infections with taenia solium, man can serve as the: a、definitive host b、intermediate host c、definitive and/or the intermediate host d、none of the above
10、humans acquire infections with diphyllobothrium latum adult worms by: a、ingestion of fresh water crabs b、skin penetration of cercariae c、ingestion of water chestnuts d、ingestion of infected raw fresh water fish
11、humans can serve as both the intermediate and definitive host in infections caused by: a、enterobius vermicularis b、hymenolepis nana c、schistosoma japonicum d、ascaris lumbricoides
12、in infections with taenia solium, man can serve as the: a、definitive host b、intermediate host c、definitive and/or the intermediate host d、none of the above
13、this condition results from the accidental ingestion of helminth eggs. in this instance the human becomes the intermediate rather than the definitive host. the correct answer is: a、trichinosis b、cysticercosis. c、ascariasis. d、strongyloidiasis.
14、the most common part of echinococcosis in the body is a、abdominal cavity b、brain c、anocelia d、liver
15、the following helminth image is (low power, 10x): a、taenia solium b、taenia saginata c、dipylidium caninum d、echinococcus sp.
16、pigs or dogs are the source of human infection by each of the following parasites a、echinococcus granulosus b、taenia solium c、ascaris lumbricoides d、trichinella spiralis
17、which cestodes does need an intermediate host to complete its life cycle? a、taenia saginata b、hymenolepis diminuta c、echinococcus granulosus d、hymenolepis nana
18、the following proglottid was seen in a fresh stool specimen; the proglottid was subsequently injected with india ink. which of the following is the correct identification? a、taenia saginata b、hymenolepis diminuta c、dipylidium caninum d、taenia solium
19、which cestodes can be diagnosed by fecal examination？ a、hymenolepis nana b、taenia solium c、echinococcus granulosus d、spirometra mansoni
20、the morphological difference between pork tapeworm and beef tapeworm is a、scolex with or without rostellum and hooklets b、number of lateral uterine branches c、number of ovarian lobes d、eggs
04 medical trematodes
unit test 4
1、which of the following may be ingested with raw fish, affects the liver, and has an operculated egg ? a、clonorchis sinensis b、paragonimus westermani c、schistosoma japonicum d、schistosoma mansoni e、hymenolepis nana
2、cholangiocarcinoma is caused by – a、paragonimus westermani b、schistosoma japonicum c、clonorchis sinensis d、fasciolopsis buski e、schistosoma haematobium
3、charcot layden crystal are seen in sputum in infection with ___ a、fasciola hepatica b、fasciolopsis buski c、paragonimus westermani d、clonorchis sinensis e、lung hydatid cyst
4、the parasite which is commonly known as “distome of china” is ___ a、paragonimus westermani b、schistosoma japonicum c、clonorchis sinensis d、opisthorchis felineus e、metagonimus yokogawai
5、“lung distomes” are scientifically known as ___ a、clonorchis sinensis b、opisthorchis felineus c、metagonimus yokogawai d、schistosoma mansoni e、paragonimus westermani
6、a trematode infection spread by eating raw or undercooked fish in which the adult parasite lives in biliary tract and causes epithelial hyperplasia followed by adenoma and is responsible for cholangitis and cholangiocarcinoma resembling a primary liver call carcinoma is ___ a、fasciolopsis buski b、schistosoma japonicum c、clonorchis sinensis d、paragonimus westermani e、fasciola hepatica
7、which parasite’s infective stage is found in crabs or crayfishes? a、clonorchis sinensis b、fasciola hepatica c、echinococcus granulosus d、paragonimus westermani e、schistosoma japonicum
8、the infective stage of which parasite is encysted in aquatic vegetations? a、clonorchis sinensis b、echinococcus granulosus c、pragonimus westermani d、schistosoma mansoni e、fasciolopsis buski
9、which among the following parasite is transmitted by fish? a、clonorchis sinensis b、taenia solium c、paragonimus westermanii d、hymenolepis nana e、hymenolepis diminuta
10、what is the scientific name of sheep liver fluke? a、clonorchis sinensis b、schistosoma japonicum c、strongyloides stercoralis d、fasciolopsis buski e、fasciola hepatica
11、select the true statement: a、cysticercus bovis can be seen in human host. b、schistosomulae of schistosoma japonicum mature in liver. c、miracidium of clonorchis sinensis will have a free swimming life. d、the life span of microfilariae is about 7 days. e、schistosoma japonicum has two generations of rediae.
12、the parasitic infection that leads to urinary bilharziasis is - a、wuchewreria bancrofti b、toxoplasma gondii c、schistosoma japonicum d、schistosoma haematobium e、onchocerca volvulus
13、visceral schistosomiasis is caused by- a、schistosoma mansoni b、schistosoma japonicum c、schistosoma haematobium d、schistosomulae e、none of the above
14、which of the following organisms penetrates skin, is endemic in africa and latin america, and has a large lateral spine on its eggs? a、clonorchis b、paragonimus c、schistosoma haematobium d、schistosoma japonicum e、schistosoma mansoni
15、the infective stage of which parasite is encysted in aquatic vegetations? a、clonorchis sinensis b、echinococcus granulosus c、pragonimus westermani d、schistosoma mansoni e、fasciolopsis buski
16、what are the possible parasites of drinking raw water that is not disinfected？ a、schistosoma japonicum b、fasciolopsis buski c、paragonimus westermani d、entamoeba histolytica e、hookworm
17、which of the following statements about clonorchis sinensis is true? a、it is sometimes referred to by the common name "oriental liver fluke". b、a pair of large,lobulated testes with seven branches is in the posterior 1/3 of the animal. c、the adult worm resides in the bile ducts of the definitive host and isrelatively small,10 to 25 mm long by 3 to 5 mm wide. d、a characteristic knob is at the abopercular end of the egg shell. e、the definitive hosts include humans,dogs,cats,pigs,and rodents.
18、which of the following statements about fasciolopsis buski is true? a、it is one of the largest flukes found in humans. b、the two dendritic testes are parallel in the posterior half of the body. c、the eggs release miracidia,which invade asuitable snail of the genus segmentina and hippeutis as an intermediate host. d、it can be distinguished from other members of the fasciolidae by the lack of a cephalic cone or "shoulders" and the unbranched ceca. e、the mechanical irritation or damage caused by f.buski is less serious than that of other flukes.
19、which are the hosts of fasciolopsis buski? a、water chestnut b、human c、pigs or wild boars d、water bamboo e、segmentina
20、which eggs of schistosoma spp. can distributed in liver? a、s.japonicum katsurada,1904 b、s.mansoni sambon,1907 c、s.haematobium bilharz,1852 d、s.intercalatum fisher,1934 e、s.mekongi voge et al,1978
05 medical protozoa
unit test 5
1、malaria attacks (febrile paroxysms) are caused by a、a. release of toxins from rbc b、b. invasion of rbc by merozoites c、c. severe hemolytic anemia d、d. all of the above
2、which species shows less days of pre- erythrocytic schizogony among the following? a、a. plasmodium vivax b、b. plasmodium falciparum c、c. plasmodium malariae d、d. plasmodium ovale
3、toxoplasma gondii is transmitted to human by: a、a. ingestion of soil contaminated by oocyst from cats b、b. congenital transmission from mother with acute toxoplasmosis c、c. ingestion of cysts in undercooked meat d、d. all of the above
4、flask shaped ulcers in the colon are caused by: a、a. giardia lamblia b、b. acanthamoeba c、c. entamoeba histolytica d、e. toxocara canis
5、formed during chronic infections, slowly multiplying parasites within the cyst is known as a、a. tachyzoites b、b. bradyzoites c、c. phanerozoites d、d. cryptozoites
6、which among these are not considered as opportunistic parasite in aids? a、a. pneumocystis carinii b、b. toxoplasma gondii c、c. trichomonas vaginalis d、d. cryptosporidium parvum
7、true regarding trichomonas vaginalis infection: a、a. is caused by a protozoan flagellate b、b. the infective stage is the trophozoite c、c. causes vaginal discharge in females d、d. all of the above
8、plasmodium falciparum causes most serious form of infection due to: a、a. absence of true relapse b、b. irregular paroxysms c、c. adherence and blocking of capillaries of internal organs d、d. multiple infections inside the rbc’s
9、select the true statement regarding toxoplasmosis in humans: a、a. becomes active in immuno-compromised patients b、b. acute infection could be transmitted from mother to fetus c、c. is transmitted by ingestion of cysts in undercooked meat d、d. all of the above
11、the most distinctive feature of pathogenic entamoeba histolytica on fresh stool examination is a、a. presence of active pseudopodia b、b. erythrophagocytosis c、c. presence of intracytoplasmic vacuoles d、d. presence of two karyosomes
12、which mosquitoes are primary vectors of malaria? a、a. male anopheles b、b. female anopheles c、c. male aedes d、d. female aedes
13、which among this is not a protozoan parasite of human? a、a. entamoeba histolytica b、b. toxoplasma gondii c、c. angiostrongylus cantonensis d、d. trichomonas vaginalis
14、which among them acts as a definitive host of toxoplasmosis? a、a. human beings b、b. sewer rats c、c. cats d、d. pigs
15、which of the following agent is used to prevent malaria? a、a. mebendazole b、b. chloroquine c、c. inactivated vaccine d、d. zinc tablet
16、amoebiasis caused by entamoeba histolytica is transmitted by a、a. house flies b、b. contaminated food c、c. contaminated hands d、d. contaminated faeces
17、the classical clinical symptoms of malaria does not include a、a. fever b、b. anaemia c、c. hepato-splenomegaly d、d. pulmonary edema
18、the following parasites are transmitted by mosquitoes including: a、a. leishmania donovani b、b. wuchereria bancrofti c、c. plasmodium vivax d、d. plasmodium falciparum
19、the following statements concerning malaria are correct a、a. the female anopheles mosquito is the vector b、b. early infection, sporozoites enter hepatocytes c、c. release of merozoites from red blood cells causes fever and chills d、d. the principal site of gametocyte formation is the human gastrointestinal tract.
20、true regarding cutaneous leishmaniasis : a、a. it is caused by leishmania major b、b. transmitted by sand fly c、c. diagnosed by skin smear d、d. endemic in saudi arabia
06 medical arthropods
unit test 6
1、fleas are included in class- a、insecta b、crustacea c、mollusca d、arachnida
2、which mosquitoes are known as tiger mosquitoes? a、anopheles b、culex c、aedes d、mansonia
3、human flea among these are- a、xenopsylla cheopis b、pediculus humanus c、phthirus pubis d、pulex irritans
4、intermediate host in the life cycle of dracunculus medinensis is- a、cray fish b、cyclops c、rat flea d、female anopheles mosquito
5、which disease is transmitted by mites? a、babesiosis b、pediculosis c、chagas disease d、scabies
6、which mosquitoes are primary vectors of malaria? a、male anopheles b、female aedes c、female anopheles d、female culex
7、the mouth parts of house fly are of a、piercing and sucking type b、biting and chewing type c、sucking and sponging type d、biting, sucking and lapping type
8、division of the body into head, thorax and abdomen is a characteristic of a、insecta b、insecta and archnida c、insecta and crustacea d、insecta and myriapoda
9、ticks and mites are included in class- a、insecta b、crustacea c、mollusca d、arachnida
10、which is the dengue fever vector a、aedes b、cluex c、anopheles d、toxorhynchites
11、wingless insects among the following a、pediculus humanus b、glossina palpalis c、reduvid bug d、black fly
12、tsetse fly is not the vector for a、trypanosoma rhodesiense b、trypanosoma gamiense c、trypanosoma cruzi d、trypanosoma brucei
13、which kind of flea cause the tungiasis a、leptopsylla segnis b、pulex irritans c、tunga penetrans d、xenopsylla cheopis
14、which kind of louse can parasitize in human eyelash a、pediculus humanus capitis b、pthirus pubis c、pediculus humanus corporis d、none of them
15、which disease is transmitted by sandfly a、leishmaniasis b、dengue fever c、yellow fever d、chikungunya fever
16、which kind of cockroach most widely distributed in china a、blattella germanica b、periplaneta americana c、periplaneta fuliginosa d、periplaneta australasiae
24、whcih viruses are involved in vertical transmission from vector adult to eggs a、dengue virus b、zika virus c、yellow virus d、hiv
25、the types of fly mouthpart including： a、sponging type b、piercing type c、vestigial mouthparts d、chewing type
final exam
medical parasitology final exam
1、the main energy source of parasites is: a、protein b、fat c、carbohydrates d、related substances in parasitic parts
2、parasite is defined as： a、any of two commensal organisms b、the beneficiary of two commensal organisms c、the beneficiary of parasitism in two living organisms d、any of two mutualistic organism
3、opportunistic parasites are the parasites: a、contact with the host during feeding and leave the host later so as to pass on the disease by feeding b、can live by themselves and invade the host by chance c、often cause latent infection in the host , and occasionally cause disease d、result in latent infection in the normal hosts, and cause disease in immunecompromised hosts
4、the control and treatment principles for parasitic diseases is a、control and eliminate the source of infection, cut off the route of transmission, prevent infection and protect the susceptible population b、universal vaccination c、focus on the point of improving bad eating habits d、pay attention to personal hygiene to control the prevalence of parasitic diseases
5、the reservoir host is: a、a parasitic animal b、parasitic vertebrate c、vertebrates parasitized by human parasites d、arthropod parasitized by human parasite
6、the infection stage of ascaris lumbricoides is a、fertilized eggs of ascaris lumbricoides b、unfertilized eggs of ascaris lumbricoides c、ascaris eggs in infection stage d、filariae
7、the serious harm of ascaris lumbricoides to human is a、the amount of ovulation of adults is large b、the adults capture nutrition c、the complications caused by adults d、the larvae migrate through the lungs
8、when hookworm sucks blood, the wound on the biting site is not easy to coagulate, which is mainly due to a、the function of the hook teeth in the buccal capsule b、the function of the plate teeth in the buccal capsule c、the mechanical stimulation of adults d、the secretion of anticoagulant
9、the most commonly used experimental diagnosis method for hookworm disease is a、direct smear method b、saturated brine floatation c、culture of eggs d、immunological diagnosis
10、the infection stage of lymphatic filariae is a、microfilaria b、adult worms c、stage 2 larvae (l2) d、stage 3 lavae (l3)
11、which of the following may be ingested with raw fish, affects the liver, and has an operculated egg ? a、clonorchis sinensis b、paragonimus westermani c、schistosoma japonicum d、schistosoma mansoni
12、select the true statement: a、cysticercus bovis can be seen in human host b、schistosomula of schistosoma japonicum mature in the difinitive hosts' liver. c、miracidium of clonorchis sinensis will have a free swimming life in a short time. d、the life span of microfilariae is about 7 days.
13、which of the following parasites is transmitted by fishes? a、clonorchis sinensis b、taenia solium c、paragonimus westermanii d、hymenolepis nana
14、unarmed scolex is the characteristic feature of a、echinococcus granulosus b、taenia solium c、hymenolepis diminuta d、taenia saginata
15、which cestodes may not need an intermediate host? a、dipylidium caninum b、hymenolepis diminuta c、echinococcus granulosus d、hymenolepis nana
16、what is the scientific name of the pork tapeworm? a、ancylostoma duodenale b、ascaris lumbricoides c、wuchereria bancrofti d、taenia solium
17、malaria attacks (febrile paroxysms) are caused by a、release of parasites and toxins from rbc b、invasion of rbcs by merozoites c、severe hemolytic anemia d、cytokine strom
18、toxoplasma gondii can be transmitted to humans except: a、ingestion of food contaminated by oocyst from infected cats b、congenital transmission from mothers with acute infection c、ingestion of cysts in undercooked meat d、sexal transmission
19、the toxoplama stage formed under immunity of the hosts and multiplying slowly within the cyst is known as a、oocysts b、bradyzoites c、tachyzoites d、cryptozoites
20、the most serious clinical type of falciparum malaria is caused by a、irregular paroxysms b、destroy of rbcs by mature schizonts c、adherence and blocking of capillaries in the important internal organs d、multiple infection of erythrocytes
21、in which of the following samples, is the protozoan parasite with characteristic jerky movement mostly observed? a、biopsied muscle b、blood smear c、smear of duodenal fluid aspirate d、smear of vaginal secretions
22、oocyst of plasmodium is formed in ( ) a、rbcs of humans b、liver cells of humans c、salivary glands of mosquitoes d、the stomach wall of mosquitoes
23、flask shaped ulcers in the colon are caused by a、entamoeba histolytica b、giardia lamblia c、plasmodium vivax d、naegleria fowleri
24、which protozoan infection is not transmitted by contaminated water or food a、malaria b、toxoplasmosis c、amoebiasis d、cryptosporidiosis
25、cyst phase does not exist in a、entamoeba coli b、entamoeba histolytica c、giardia lumblia d、trichomona vaginalis
26、which of the following arthropods do not transmit zoonoses ( ) a、fleas b、lice c、mosquitoes d、chigger mites
27、which of the following arthropod only sucks human blood( ) a、human lice b、fleas c、aedes mosquitoes d、anopheles mosquitoes
28、which of the following tapeworm is transmitted by fleas? a、echinococcus granulosus b、spirometra mansoni c、hymenolepis diminuta d、diphyllobothrium latum
29、fleas spread plague mainly through a、blood sucking infection of larvae sting b、blood sucking infection of adult sting c、transmission through eggs d、fleas feces contaminates human wounds
30、the strong resistance of ascaris eggs to chemicals is mainly due to： a、thick egg shell b、ascaroside layer c、protein membrane d、fertilization membrane
31、the key to prevent ascariasis is ( )? a、no ingesting raw meat b、environmental hygiene c、fecal management d、vectors control
32、which disease is resulted by mites? a、babesiosis b、pediculosis c、chagas disease d、scabies
33、if you find a tick attaching on your skin, which of the following description is wrong on how to remove it. a、crush a tick with your fingers b、after removing the tick, thoroughly clean the wound and your hands with 75% alcohol c、remove the tick as soon as possible. d、don’t twist or jerk the tick; this may cause the mouth-part broken off and remain in the skin tissue
34、which arpropode can cause trombiculosis? a、chigger adults b、chigger larvae c、hard tick d、soft tick
35、about the general morphology of soft ticks, which of the following descriptions is wrong? a、they have a leathery cuticle b、they have a scutum c、the spiracles occur on the supracoxal folds d、mouthparts only easily visible from the ventral side.
36、the following figure is () a、hookworm eggs b、pinworm eggs c、schistosoma japonicum eggs d、paragonimus westermani eggs
37、this is the head of ( ) a、ascaris lumbricoides b、necator americanus c、ancylostoma duodenale d、taenia solium
38、the parasite on this figure is ( ) a、entamoeba histolytica b、giardia lamblia c、toxoplasma gondii d、trichomona vaginalis
39、the following figure is of ( ) a、the scolex of taenia saginata b、the scolex of taenia solium c、the scolex of echinococcus granulosus d、the scolex of hymenolepis nana
40、the following figure is of ( ) a、toxoplasma gondii b、plasmodium vivax c、plasmodium falciparum d、leishmania donovani
41、the mechanical damages caused by parasites to the host include: a、damages during invasion b、damages during migration c、sticking to tissues at parasitism site d、compressing surrounding tissues or organs in a parasitism site
42、which of the following are biological transmission? a、fleas transmit plague b、mosquitoes transmit filariasis c、lice transmit typhus d、chigger mites transmit tsugamushi disease
43、according to the different parasitic sites, parasites can be divided into： a、internal parasites b、helminthes c、protozoan d、ectoparasites
44、factors affecting the prevalence of parasitic diseases include： a、natural factors b、biological factors c、climatic factors d、social factors
45、which stage can be commonly observed in peripheral blood smear from patient with falciparum malaria a、ring form b、schizont c、gametocyte d、sporozoite