![]() Insert one blade of scissors through the body wall on one side of the umbilical cord and cut posteriorly to the base of the leg as shown in figure 6. Tie one front leg of the animal with a string that passes underneath the dissecting pan to the other leg. Male: urogenital opening, penis, anus Preparation and Initial Cuts Female: genital papilla, urogenital opening, anus Figure 3. Female: injection site, nipples, umbilical cord Figure 2. The word “urogenital” refers to an opening that serves both the urinary (excretory) and the reproductive systems. Use your pig and also a pig of the opposite sex to identify the structures in the photographs below. Obtain a fetal pig and identify the structures listed in figure 1. Use figures 1–4 below to identify its sex. The pig in figure 1 below has its ventral side up. The pig in figure 1 is lying on its dorsal side. If a structure is anterior to another, then it is closer to the head. The following words will be used to help identify the location of structures. Links to high-resolution, unlabeled photographs are also provided for many of the photographs. ![]() As a result, a structure shown in one photograph may look different than the same structure shown in another photograph.Ĭlick on any of the photographs to view enlargements. Several different pig dissections were used to obtain the photographs below. The incision can be seen in the first photograph below. An incision was made on the side of the neck to enable the injections. The arteries have been filled with red latex and the veins with blue. The fetal pig that you will dissect has been injected with a colored latex (rubber) compound. ![]()
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