Lecture: Extra-intestinal Nematodes Flashcards
Measure of T. spiralis male
1.5 by 0.04 mm
Measure of T. spiralis female
3.5 mm by 0.06 mm
The T. spiralis female is viviparous or larviparous and is capable of producing _
1,500 larvae
T. spiralis larvae measures about _ at birth and reaches _ after it enters striated muscle
80 – 120 microns by 5.6 microns
900 - 1,300 microns by 35 – 40 microns
Make use of experimental animals like Albino rats
Beck’s Xenodiagnosis
The adult A. cantonensis are filiform having a length of
17-25 mm
The adult A. cantonensis female are filiform having a length of
21-25 m by 0.30-0.36 mm
The female A. cantonensis is characterized by having a _ appearance due to the looping of milky white uterine tubules around the blood-filled intestine
Barber’s pole
The adult A. cantonensis male are filiform having a length of
15.9 to 19 mm in length by 0.26 mm in diameter
The A. cantonensis eggs are elongated, ovoidal with a delicate hyaline shell and measure
46 to 48 by 86 to 74
microns
The incubation period for A. cantonensis infection is from
12-47 days
In the Philippines, A. cantonensis has been reported in rats with a prevalence rate of _
7%
An ancient and longest nematode
D. medinensis
The females are elongated, cylindrical, bluntly rounded at the anterior end and measures _
70-120 cm by 0.7-1.7 mm
The life span of the D. medinensis female is _ and the fate of the male is still unknown
12 to 18 months
