Biology 546
Human parasitology laboratory tutorial

The worm on the left was found attached to the wall of the small intestine of an individual during autopsy. The worm is an incidental finding only. You are viewing the buccal cavity of the parasite. What species does it represent?

Ancylostoma duodenale
Ascaris lumbricoides
Necator americanus
Trichuris trichiura

Original; the photograph is part of the J.E. Ackert teaching collection at Kansas State University. The original source is unknown.

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