This experiment is from the official website of Human Parasitology of Shandong University

Operation method

Morphological observation experiments on the nematode Echinococcus sp.

Principle

Echinopalatine mouth nematodes parasitize carnivores such as dogs and cats, and the larvae can infect the body, causing cutaneous or visceral larval migrans.

Move

Adults are thicker, cylindrical, slightly transparent, and grayish-white after death. Males are 11-25 mm long, females are 25-54 mm long, the head and tail end are curved to the ventral surface, the head is slightly expanded into a sphere with eight circles of barbs arranged before and after, the neck is narrow, and there are two fleshy lips around the mouth. There are numerous body spines on the anterior half of the body surface and near the caudal end. The male has four pairs of stalked papillae at the caudal end and a pair of symphysis spines of varying lengths. In females, the vulva is located slightly posterior to the middle of the body, and the vagina is long.

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