Caption: Dog hookworm (nematode - Ancylostoma caninum). The adult parasites are small cylindrical worms 0.5 - 1.5mm long. The genus Ancylostoma have pairs of teeth on the ventral margin of the buccal capsule. The posterior end of the male worm is equiped with a characteristic copulatory bursa, used to catch and hold the female nematode during mating. The eggs are passed in the feces and once exposed to air they mature rapidly under optimal temperature and moisture. When mature they hatch to liberate a rhabditiform larvae. Larvae pass to the outside through human feces and subsequently re-enter their host by burrowing through the skin. After migrating through the lungs they settle in the gut and become sexually mature. The adult hookworms attach themselves to the intestinal wall using the buccal capsule teeth.
Magnification*: x8 (inset x50)
Type: SEM
Copyright 2003 Dennis Kunkel Microscopy, Inc.
Keywords: 23995C,01.01.03,Ancylostoma,animal disease,buccal capsule,buccal cavity,copulatory bursa,dog hookworm,hook worm,hookworm,hookworm teeth,human disease,intestine,invertebrate,invertebrates,misc. invertebrates,nematode,parasite,parasitic,stomodeum,Strongylida,Nematoda,helminth,roundworm,SEM,Ancylostoma caninum