Trichuris trichuria Flashcards
1
Q
Synonym
A
Trichocephalus trichurius, Trichocephalus dispar
2
Q
Common name
A
Whipworm
3
Q
Infective stage:
A
Embryonated ova
4
Q
Main habitat
A
Cecum, appendix
5
Q
Principal host
A
man, but has been found in hogs, monkeys,
cattle, dogs, mice
6
Q
Life span
A
5-10 yrs
7
Q
Ova shape
A
Barrel/football shape or japanese lantern
8
Q
3 layers
A
undeveloped, unicellular embryo
outermost layer – smooth, bile-stained
Hyaline/Mucus plug
9
Q
Smooth, bile-stained layer
A
Outermost layer
10
Q
Polar plug layer
A
Hyaline/ mucus plug
11
Q
Unsegmented at ovi position
A
Unfertilized egg
12
Q
Adult color?
A
Flesh colored
13
Q
anterior three-fifths is attenuated (whiplike)
A
Adult
14
Q
Male posterior portion is?
A
Coiled
15
Q
lanceolate spicule protruding through a refractile
pineal sheath
A
Male
