Intestinal and Urogenital protozoa Flashcards
Y2C1 1 question will be asked
amoebas
only markable amoeba?
entamoeba histolytica
Amoebas
locomotion:use_______
Reproduction:_____fission
2 forms____&______
pseudopodia
random binary fission
trophozite&cyst form
amoebas:trophozite form
____stage or organism
vegetative
amoebas:cyst form
non______&______stage
infective for ?
non motile&feeding
humans
Intestinal amoebae
pathogenic amoebae________
direct life cycles human is______host
transmission via cyst in______
entamoeba histolytica
human is definitive host
cyst in feceally contaminated foor or water
clinical features of amoebic&bacillary dysentery
symptoms
* mild infection:
* moderate:
* acute:bloody_____or_____,cramping,low-grade____
* primary lesions are_____on wall of colon
asymptomatic
diarrhoea
bloody diarrhoea or dysentery,low-grade fever
ulcers on wall of colon
clinical features of amoeba in Intestine
amoebic ulcers
found in_____and_____rectal region
discrete, flask shaped(with ragged undermined margin)
caecum and sigmoido-rectal region
amoeba:extraintestinal complications
trophozoiets penetrate_______wall
may be carried in_____to other sites
amoebic______&____abscess are most common
abcesses in other organs such as lung, brain, spleen & genitourinary tract may result from______spread pr by direct spread from____lesion
intestinal wall
carried in blood
amoebic hepatitis&liver abscess
hematogenous spread
hepatic lesion
amoebic intestinal infection:treatment
_____or_____along with_____,____furoate or_____
metronidazole or tinidazole along with parmomycin, diloxanide furoate or chloroquine
entamoeba histolytica:diagnosis
microscopy
* motile______
* ingested_____cytes within______cytoplasm
* should be confirmed with____detection(ELISA)
*Molecular technique(PCR)
* serologic tests used in
* severe cases of amebic_______or extraintestinal______
trophozoites
erythrocytes within trophozoite cytoplasm
antigen
amebic dysentery
amebiasis
Giardia lamblia
causes_____
world-wide, more prevelent in____climates
human strains van affect other animals_____&_____
cysts can live as long as 3______in fresh water
can resist_____at usual water purification levels
lives in_____&upper______
only protozoan parasite found in lumen of human_____intestine
last one can be important imo
giardiasis
warm climates
can affect beavers and dogs
3 months in fresh water
resist chlorine
duodenum&upper jejunum
only protozoan parazite found in human small intestine
giardia lamblia
____transmission
person to person transmissions in______sexuals
may be________
severe acute_____
can become chronic(especially people with secretory immunoglobin__ definciencies)
fecal-oral
homosexuals
asymptomic
diarrhea
Immunoglobin A
giardia lamblia:clinical features
acute____
develops after an____period of 5 to 6 days
usually lasts 1 to 3____
symptoms
diarrhea;stool with excess____
abdominal pain;______,____and_____
giardiasis
weeks
excess mucous
bloatind,nausea and vomiting
giardia lamblia:chroniic giardiasis
symptoms are reccurent
_____&______may occur as result of extensive and prolonged infection
not invade, nor produce____diarrhoea or____infection
host respond with a submucosal infiltrate of______cells with loss of___
total______area is significantly diminishes
malabsorption & debilitation
bloddy diarrhoea or metastatic infection
iflammatory villi
giardia lamblia:diagnosis
observation of___or___in fecal specimen or duodenal contents
cyst or trophozoites
trichomonas vaginalis
does not has___form
can’t survive well in____environment
common__transmitted disease
associated with epithelium of_____tract
females:_____
males:____,_____,____
symptoms more common in___
cyst form
external environment
sexually transmitted
urogenital tract
vagina
urethra,prostate,epididymis
more common in females
trichomonas vaginalis:life cycle
trophozoite in___&____secreations and urine
multiplies by___fission
trophozoite in___or____
its only known host is human primarily transmitted by sexual intercourse
vaginal & prostatic secreations
londiudinal binary
vagina or urethra
trichomonas vaginalis:symptoms
less common than___
vaginal erythema, strawberry cervix
males
50-90% are________
mild____or____
minor____discharge
50-75% abnormal discharge in females
males
asymptomatic
dysuria or pruritus
urethral discharge
balantidium coli:balantidiadis
only_____protozoan parasite of humans
largest____parasite of humans
transmission routes
______
_____
_____
ciliate protozoan
largest protozoan
faecal-oral
person to person
contaminated food & water(mainly)
balantidium coli:clinical features
______but people with serious ilnesses can experience:
persistent____
_____pain
perforated____(sometimes)
can cause___with ulceration
balantidium coli:symptoms
intermittent_____
diarrhea
balantidium coli:diagnosis
demonstration of____&___in feces
examination of biopsy specimens & scrapings from_____
trophozoites & cyst in feces
intestinal ulcers
Balaintidium coli
ID via presence of_____fecal specimen
cyst or trophozoite
cystoisospora belli
world-wide especially in____&____areas
tropical & subtropical
