Reading: Roundworms

Ascaris Dissection

Procedure

  1. Obtain a female Ascaris and place it on a dissecting pan. The posterior end is curved in males and straight in females.
  2. Make a shallow longitudinal cut the length of the worm and pin it open as illustrated below.
  3. Identify the gut, ovary, oviduct, uterus, and vagina.

Ascaris

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Trichinella

View a prepared slide of Trichinella in the muscle tissue of a host organism.

Figure 1. Trichinella spiralis encysted in muscle tissue of a host X 40

Figure 1. Trichinella spiralis encysted in muscle tissue of a host X 40