The cat dissection follows a specific pattern designed to reduce the chance that a structure will be damaged before you have had the chance to fully examine it. The first step for any dissection is to get an idea of what you will be doing and in what order. There is no substitute for the real thing though, and these pages are simply meant to supplement the lab. The following pages attempt to walk through the steps of the cat dissection to show images of what students have observed during the lab. Unfortunately, access to the specimens is limited to what is afforded during class and lab time. All in all, the experiences can be rewarding. Freshman start on the frog, advanced students might experience a rat, rabbit or a bullfrog.Īnatomy students may have access to cat specimens and in college may experience learning anatomy using human cadavers. > 0 0 TVO 11 3 1658 14.Students of anatomy learn by studying a variety of specimens. They may appear spongy or floppy and deflated. 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. 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 stomach -the largest of the digestive organs. 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.
VIRTUAL FROG DISSECTION LAB ONLINE SKIN
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.
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