Frog Dissection

First Steps Rinse frog in water Obtain frog and place frog on its dorsal (back) side.  Pin limbs to dissection tray

Making Incisions Use forceps to lift frogs skin between rear legs. Use scalpel to cut through lifted skin. AB CD EF

Exposing the Muscular Tissue Lift one flap of skin with the forceps. (separate muscle layer from skin) Pin the flaps of skin to the dissection tray Make a vertical incision through the abdominal muscle (use scissors up until just before the front legs) Cut through chest bones vertically then make lateral cuts

Exposing the Chest Cavity Use forceps to pull back and hold muscle flaps. Use scalpel to separate organ from muscle tissue. Pin flaps to dissection tray.

Exposing the Organs Use forceps to pick up the triangular flaps of skin and muscle below the front legs. Pin the flaps back enough to access body cavity