4.2 Other Flagellates

Question 1

three types of intestinal & urogenital flagellates

Answer 1

• trichomonas
• giardia
• chilomax

Question 2

what is the most common protozoan intestinal disease

Answer 2

giardiasis - caused by giardia lamblia

Question 3

habitat of giardia lamblia

Answer 3

duodenum and upper jejunum

Question 4

infective stage of giardia lamblia

immature cyst
mature cyst
trophozoite

Answer 4

mature quadrinucleate cyst

Question 5

the infective giardia lamblia cyst is

binucleated
quadrinucleated

Answer 5

quadrinucleated

Question 6

pathogenic stage of giardia lambia

immature cyst
mature cyst
trophozoite

Answer 6

active trophozoite

Question 7

diagnostic stage of giardia lamblia

immature cyst
mature cyst
trophozoite

Answer 7

mature cyst AND trophozoite in feces

Question 8

mode of infection

Answer 8

contaminated food

Question 9

giardia lambia trophozoite stage is shaped like

kite
leaf
pear

Answer 9

pear shaped - old man’s face

Question 10

giardia lambia trophozoite has how many?

• flagella
• axostyle
• sucking disc
• nucleus
• basal bodies

Answer 10

• flagella (8)
• axostyle (2)
• sucking disc (2) - anterior/ventral
• nucleus (2)
• basal bodies (2)

Question 11

what two structures are found in both giardia lamblia trophozoite and cyst

Answer 11

2 axostyles

2 parabasal bodies

Question 12

giardia lamblia cyst has how many

• flagella
• axostyle
• sucking disc
• nucleus
• basal bodies

Answer 12

• flagella (0)
• axostyle (2)
• sucking disc (2) - anterior ventral
• nucleus (4)
• basal bodies (2)

Question 13

how does giardia lamblia divide

Answer 13

binary fission

Question 14

child shows signs of malnutrition. stool sample is negative to blood or necrotic tissue. history indicates nausea and diarrhea.

what is the infection?

Answer 14

giardia lamblia

Question 15

what is the chronic pathology of giardia lamblia

Answer 15

covering of the epithelium by the trophozoite causing malabsorption of nutrients

Question 16

child comes in with abdominal pain and distention. stool sample is negative to blood and positive to lipid. no fever

Answer 16

giardia lamblia

Question 17

what is the differentiating feature between giardia lambia and trichomonas hominis

Answer 17

trichomonas hominis is an asymmetrical flagellate with an undulating membrane

Question 18

what is the drug of choice for giardia lamblia for those older than 3 y/o

Answer 18

metronidazole

Question 19

what is the drug of choice for giardia lamblia for those under 3 y/o

Answer 19

tinidazole

Question 20

where are lumen dwelling flagellates found

Answer 20

lumen of alimentary canal

UGT

Question 21

what are the types of trichomonas

Answer 21

t. hominis
t. vaginalis
t. tenax

Question 22

all three trichomonas direct life cyle

true or false

Answer 22

true

Question 23

characteristics of trichomonas

Answer 23

• 3 to 5 anterior flagella
• undulating membrane
• recurrently flagellum attached to the edge of the undulating membrane

Question 24

how does trichomonas reproduce

Answer 24

longitudinal binary division

Question 25

how do you differentiate t. hominis cyst from giardia lamblia cyst

Answer 25

you don't; trichomonas have no cyst form

Question 26

match trichomas to area of infection t. hominis t. tenax t. vaginalis human mouth intestinal genital organs

Answer 26

t. hominis (intestinal) t. tenax (mouth) t. vaginalis (genital organs)

Question 27

where does trichomonas tenax live

Answer 27

in mouth and teeth pockets

Question 28

gingivitis is caused by

Answer 28

t. tenax

Question 29

infective stage of t. tenax

Answer 29

trophozoite stage

Question 30

where does t. hominis live

Answer 30

intestine - caecum of human

Question 31

quality of movement of t. hominis jerky twist and rotate rotary

Answer 31

jerky

Question 32

transmission of t. hominis

Answer 32

perhaps ingestion of flagella form

Question 33

what causes trichomoniasis t. hominis t. tenax t. vaginalis

Answer 33

t. vaginalis

Question 34

quality of movement of t. vaginalis jerky twist and rotate rotary

Answer 34

twist and rotate

Question 35

doc for trichomoniasis

Answer 35

metronidazole

Question 36

what is the common species of chilomastix

Answer 36

chilomastix mesnili

Question 37

what is the habitat of chilomastix mesnili

Answer 37

caecal area

Question 38

morphology of cholomastix mesnili

Answer 38

trophozoite pear shaped 4 flagella cyst single nucleus

Question 39

transmission of chilomastix mesnili

Answer 39

contaminated food and drink

Question 40

quality of movement chilomastix mesnili

Answer 40

rotary

Question 41

diagnostic stage of chilomastix mesnili

Answer 41

trophozoite and cyst

Question 42

infective stage of chilomastix mesnili

Answer 42

cyst