23631A

23631A
Caption: Raccoon intestinal roundworm (nematode - Physaloptera sp.). Shown in this image is the stomodeum or mouth region of the adult Physaloptera nematode that attaches to the intestinal wall. Physaloptera species occur in the stomach of a variety of terrestrial vertebrates, especially dogs and cats. They are usually firmly attached to the gastric or duodenal mucosa by the stomodeum. Physaloptera spp. can cause acute gastritis, anemia, severe weight loss and sometimes death. Eggs are passed in the feces and can become infective in 2-3 weeks. Mice and frogs may be paratenic hosts. After a dog/cat comes in to contact with contaminated feces or ingests infective eggs/larvae (from a paratenic host), development of larvae to adults immediately occurs in the intestine. Coprophagous grubs, crickets, cockroaches and beetles can also carry infective larvae. Baylisascaris is a related genus of roundworms that infects more than 40 animal species, including humans. Baylisascaris procyonis is the species that occurs in raccoons and can be deadly to humans.
Magnification*: x7
Type: SEM
Copyright 2009 Dennis Kunkel Microscopy, Inc.
Keywords: 23631A,misc. invertebrates,nemetode,roundworm,parasite,Physaloptera,SEM,raccoon roundworm,Ascaridoidea,Nematoda,nematode,nematodes,06.01.09,raccoon nematode,raccoon nematodes,raccoon roundworms,raccoon threadworm,raccoon threadworms,gasteroentritis,lymphocytic gasteroentritis,plasmacytic gasteroentritis,cat nematode,cat nematodes,cat roundworm,cat roundworms,cat threadworm,cat threadworms,dog nematode,dog nematodes,dog roundworm,dog roundworms,dog threadworm,dog threadworms,mammal nematode,mammal nematodes,mammal roundworm,mammal roundworms,mammal threadworm,mammal threadworms,stomach nematode,stomach nematodes,stomach roundworm,stomach roundworms,stomach threadworm,stomach threadworms,threadworm,duodenitis,gastritis,animal disease,helminth,invertebrate,invertebrates,Physalopteridae,acute gastritis,canine helminth,canine helminths,canine nematode,canine nematodes,canine roundworm,canine roundworms,canine threadworm,canine threadworms,cat gastritis,dog gastritis,cat duodenitis,cat gasteroentritis,dog duodenitis,dog gasteroentritis,round worm,thread worm,beetle vector,grub vector,larvae vector,true bug vector,intestinal nematode,intestinal nematodes,intestinal roundworm,intestinal roundworms,intestinal threadworm,intestinal threadworms,intestine nematode,intestine nematodes,intestine roundworm,intestine roundworms,intestine threadworm,intestine threadworms,Physaloptera praeputialis,Physaloptera rara,insect vector,insect vectors,paratenic host,paratenic hosts,larva migrans disease,larvae migrans disease,migrans disease,Baylisascaris,Baylisascaris procyonis,Physaloptera sibirica