Intestinal Nematodes Enterobius Vermicularis Flashcards
0
Q
Common name
A
Pinworm
Seatworm
1
Q
Also known as
A
Oxyuris vermicularis
2
Q
Adult form
A
Lack true buccal
3 lips
Dorsoventral bladder
Esophageal bulb
3
Q
Adult female
A
Cuticular alar expansion Esophageal bulb Uterus distented eggs Spindle shape sharply pointed posterior Vulva us mid ventral
4
Q
Adult male
A
Curved tail
Spindle shape, curved ventrally posterior
5
Q
Rhabditiform larva
A
Esophageal bulb but has no cuticular expansion on anterior end
6
Q
Eggs
A
Asymmetrical
One side flat, one side convex
Embryonic lipoidal membrane
7
Q
What is the shape of the egg?
A
Planoconvex
8
Q
The shellhas how many layers
A
2
9
Q
Outside the host, eggs become infective in?
A
4-6 hours
10
Q
Ovum develops into
A
Tadpole like embryo
11
Q
Adult worms are found
A
Cecum and lower
12
Q
Average lays
A
11,105 eggs
13
Q
Eggs become fully embryonated within
A
6 hours
14
Q
3rd stage larvae hatch
A
Duodenum
