Frog Dissection

           In class we did a frog dissection. I learned lot  of things about the frog and had a lot of fun. For example I learned that frogs have the
same organs as a human and they also work the same. The frogs have three livers and they work the same way a humans liver work. Our groups frog was a female. Female frogs have babies all over the place. For example our group found babies behind the stomach near the heart and in different places. Our first day of dissection we only saw the liver, stomach, heart, and fat bodies.



     










            The second day of our dissection, we got to take out organs of the frog. For example we took out the stomach and cut it open. Our group thought that we would find something in the stomach but we didn’t. although  our group did see the muscles along the side of the stomach. We took out other organs of the frogs body like the heart, small and large intestine, three parts of the liver, lungs, and kidney which was bean shaped. What was really hard was that we needed to take all of the babies out of the frogs body. The babies were all over the place and took half of our time taking out the babies. Also the fat bodies were in the way. I thought that if I just pulled the fat bodies it would come out. But it didn’t. I needed to cut the stems of the fat bodies and we needed to clear the frogs body of babies so we could see the organs.









As our group took out the organs we discussed the function of each one. For example when we took out the liver we discussed its function. Which was the liver produces bile. Also we took the stomach out and discussed the function of the stomach. Which was that the stomach stores and digests food. My favorite part of the dissection is when  we got to take out the organs from the frog. Also that helped me a lot because now I now more about the frogs organs. Some new things I learned about the frog that I never new is that a frog has three livers. Also I learned that the frogs organs work the same way as our organs do. Overall, I had a lot of fun during the dissection lab and I learned a lot of new things.



Links:
http://www.hoala.org/marine%20biology/frog%20dissection.html

http://pubs.logicalexpressions.com/pub0009/lpmarticle.asp?id=26

http://www.biologyjunction.com/frog_dissection.htm

Digestion System

When I did the lab I learned a lot of things about how foods break down and how my digestion system works. One very cool thing I never new is that in your stomach there is acid that breaks down your food so it could move on to your small intestine. That acid in your stomach is what I worked with while the lab. That acid liquid is called hydrochloric acid, hydrochloric acid is very dangerous and can burn into anything. We had test tubes and saw how each tubes broke down the egg white better. It was the hydrochloric acid that broke down the egg white better, but it took a long time. Hydrochloric acid takes along time to break down food because that’s why food in our bodies take a long time to leave our bodies. I had a lot of fun doing this lab and I hope we do something fun like this again.

Chicken Wing Dissection

          When our teacher dissected the chicken wing I observed a lot of things. I learned that chicken wings don't have fingers and that some human parts that are in the arm relate to the chicken wing. I observed the colors of the chicken wing. For example, like the skin.It was bumpy from the spot of feathers and it was yellow. Also what was cool about the dissection was the joints. The teacher pulled a ligament and the upper bone moved up. This dissection was really interesting and I'm looking forward to more dissections.