As soon as you reach the chin, you can now stop cutting.Cut a small hole there (in the anal or cloacal region) and cut forward, following an imaginary line called the linea alba.Pinch the frog's skin at the anal or cloacal region, making sure that it is detached from the muscles, If not, rub it gently, so that the connective tissues may loosen with the skin.Decapitate the frog with scissors and pith. Identify the dorsal and ventralsurfaces and the anterior and posteriorends of the frog. First weigh the frog and measure its length from snout to vent. Dry the frog with paper towels and place it in a dissecting tray. Pin the hands and legs on the wax-covered dissecting pan. The dissection begins with an anesthetized frog.Pithing is a procedure which attempts to sever the spinal cord from the brain using a scalpel, scissors, or probe/needle. However, vivisection, or the cutting of live animals, is still used as a means of instruction (and research). The materials were 21 patients who underwent surgery for dissection of the aorta, including 8 patients in type 1 of DeBakey classification, 3 in type 11. Dissection is the cutting of a dead animal, and is the more common method. In the Philippines, Bufo marinus, or the common toad, is used. The procedure familiarizes a student with basic chordate anatomy. Their functions and the organs needed for these functions. Frog dissection is a procedure used in undergraduate courses in zoology and high school biology classes. Dissecting a frog, we will learn about the digetive, respitory, circulatory, and nerve systems.
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