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In this lab we did on Monday and Tuesday was dissecting a frog. On the first day we cut open the skin on the ventral side. What we found out was that underneath that layer of skin is a layer of muscle tissue. After that we opened up the muscle tissue and saw the organs. What we first saw was the liver. The liver is the biggest organ in the body and produces bile for digestion. Since we had a male frog we didn't have any eggs so it was easier for us. We also found the fat bodies. Then we located the heart which is next to the liver. Next was the gall bladder, it is located underneath the liver and holds the bile being created. We found the lungs which was found underneath all the organs. Next to that was the pancreas. That produces enzymes for digestion.
Then next to the spine was the kidneys. They filter the bodies blood. We learned how close the frog's system is like ours. We learned in class that the frogs reproduction system isn't efficient because so many eggs or tadpoles(baby frogs)die from being eaten. We also found out the reason why the mouth part of the frog expands. The reason why being the lung expanding when breathing. The systems are very similar to our systems like the digestive system. Like the order. It goes from the stomach through the small intestine to the large intestine. If you get lucky you can cut open the stomach and might see what the frog ate last. The frog is a really interesting species, the reason why I think they are such a interesting animal is because they are so simalar to the human.
Then next to the spine was the kidneys. They filter the bodies blood. We learned how close the frog's system is like ours. We learned in class that the frogs reproduction system isn't efficient because so many eggs or tadpoles(baby frogs)die from being eaten. We also found out the reason why the mouth part of the frog expands. The reason why being the lung expanding when breathing. The systems are very similar to our systems like the digestive system. Like the order. It goes from the stomach through the small intestine to the large intestine. If you get lucky you can cut open the stomach and might see what the frog ate last. The frog is a really interesting species, the reason why I think they are such a interesting animal is because they are so simalar to the human.
You can learn more about the frog here: http://www.lookd.com/frogs/anatomy.html and for the digestive system here: http://www.tutorvista.com/biology/frog-digestive-system-diagram.
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| Picture From: http://www.e-tutor.com/et3/lessons/view/52133/print |
