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Cattle hookworm (nematode - Bunostomum phlebotomum)

Image Number: 24261B

Caption:

Cattle hookworm (nematode - Bunostomum phlebotomum). The adult parasites are small cylindrical roundworms 15 - 25mm long. The genus Bunostomum has pairs of teeth cutting plates) on the ventral margin of the buccal capsule. The posterior end of the male worm is equipped with a characteristic copulatory bursa, used to catch and hold the female nematode during mating. Adults attach to the mucosa of the small intestine and suck blood. After mating the eggs are passed out through the feces and develop in to rhabditiform larvae. These larvae can re-penetrate the skin of cattle or deer or can be ingested directly into the intestine. Once the larvae penetrate the skin they can move into the blood vessels and then into the lungs. There they migrate up the trachea and are swallowed. Once in the intestine they attach to the mucosa and molt into adults.

Keywords:

| 09.01.04 24261B animal disease buccal capsule buccal cavity Bunostomum phlebotomum cattle hookworm cutting plates deer hookworm endoparasite helminth hookworm teeth invertebrate invertebrates misc. invertebrates nematode parasite parasitic roundworm SEM |

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