hookworm Flashcards
complex ovejector, sphincter
female
caudal bursa, pair of spicules
male
has claviform esophagus
hookworm
hookworm also known as
bursate nematodes
meaning of bursate
phasmids
two most common type
ancylostoma duodenale and necator americanus
has ventral cutting plates
necator americanus
has ventral cutting teeth
ancylostoma duodenale
most common in the philippines
necator americanus
common name for ancylostoma duodenale
old world hookworm
size of adult male (ancylostoma duodenale)
8-11 mm x 0.6 mm
size of female (duodenale)
10-13mm x 0.6 mm
identifying feature
subterminal anal opening, conoid sheath
average daily output of eggs
25k to 30k eggs/day
very helpful in identifying a particular hookworm
teeth
two fused teeth
ventral
dental plate with median cleft
dorsal
eggs hatch in 1-2 days to release what kind of larva
rhabditoid larva
diagnostic stage
rhabditoid larva
infective stage
filariform larva
5-8 days to form what kind of larva
filariform larva
buccal cavity of hookworm
long
genital primordium of hookworm
small/incospicuous
esophagus
short