5/10/2023 0 Comments Froguts virtual frog dissection![]() These “fingery” looking structures are usually underneath the stomach. Locate the heart, usually near the top of the liver.ġ. They may appear spongy or floppy and deflated.9. Locate the two small dark pink lungs, which are on either side of the heart. Locate the dark red spleen, also in the tissues of the mesentery.8. It is attached to the “curve” of the stomach, usually lying underneath it, and might look like a thin thread, within the mesentery, the membranous tissue that connects the internal organs.7. It has a half moon shape and is usually found on the left side of the body cavity.5. ![]() Locate the stomach -the largest of the digestive organs. Locate the liver (the large, dark three-lobed organ) and the smaller gall bladder that lies beneath it.3. Then continue to learn about the internal organs of the frog by clicking on the organs, reading the information and remove each organ immediately to the organ tray.2. Close the Instructions to begin activity.)Click on an organ to learn about it, then remove it immediately to the organ tray.ġ. Instructions: Internal anatomy(Scroll down to read all the instructions. > 0 0 TVO 11 3 1658 14.0 Normal 0 false false false EN-CA JA X-NONE These are the testes, where the sperm is produced in the male. If your frog lacks these large egg bodies, look carefully for two yellow small bean shaped organs. If your frog is a mature female, locate the ovaries which contain hundreds of darkly colored eggs. ![]() Locate the heart, usually near the top of the liver.ġ0. They may appear spongy or floppy and deflated.ĩ. Locate the dark red spleen, also in the tissues of the mesentery.Ĩ. It is attached to the “curve” of the stomach, usually lying underneath it, and might look like a thin thread, within the mesentery, the membranous tissue that connects the internal organs.ħ. It has a half moon shape and is usually found on the left side of the body cavity.ĥ. Locate the liver (the large, dark three-lobed organ) and the smaller gall bladder that lies beneath it.ģ. ![]() Then continue to learn about the internal organs of the frog by clicking on the organs, reading the information and remove each organ immediately to the organ tray.Ģ. You’ll then need to carefully cut through the muscle layer and pin that.Ĭlick on an organ to learn about it, then remove it immediately to the organ tray.ġ. Bile is needed for the proper digestion of fats.Instructions: Internal anatomyTo begin the dissection you’ll first need to pin and secure your frog, then choose a tool and create the skin incision. The liver is not primarily an organ of digestion, it does secrete a digestive juice called bile. The right lobe, the left anterior lobe, and the left posterior lobe. This brown colored organ is composed of three parts, or lobes. Peritoneum A spider web like membrane that covers many of the organs, you may have to carefully pick it off to get a clear view Liver-The largest structure of the the body cavity. Usually they are located just on the inside of the abdominal wall. Fat Bodies -Spaghetti shaped structures that have a bright orange or yellow color, if you have a particularly fat frog, these fat bodies may need to be removed to see the other structures. Use what you know about humans to help, too! Check the box to indicate that you found the organs. D has a photo on the projector to help you. You may need to remove these eggs to view the organs. *If your specimen is a female, the body may be filled with eggs and an enlarged ovary. Life the flaps of the body wall and pin back. Make transverse (horizontal) cuts near the arms and legs. Twist scissors to the side over chest to avoid cutting into chest bone. Cut along the midline of the body from the pelvic to the pectoral girdle. Use scissors to life the abdominal muscles away from the body cavity. Use scalpel to gently cut skin along the lines as in the diagram, and pin skin back. Place the frog in the dissecting pan ventral side up. Virtual dissection website: Dissection Instructions 1.
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