Frog Disection

             In science we dissected a frog. We dissected a frog to learn about its organs and how they're similar to humans. I found this very interesting and fun. The first thing we did was put on gloves. Then we took the scissors and cut open the frog. Once we got the skin cut we pinned it down. After that we had to cut the muscle, being careful not to cut any organs while doing so. Then we pinned that down and had a full view of the inside of the frog.

             Once we could see the inside of the frog we had to take out eggs, oviducts, and fat. When that was done we took out the liver, which secretes bile needed for digestion. Then we cut out the stomach and intestines. Our stomach had no bugs in it. Next we examined the lungs, gallbladder, and  kidneys. finally we cut out the the heart. I pried open the mouth so we got to see the tongue. Overall this was a fun experience and I hope to do more fun things in science! 

Virtual dissection:   http://www.mhhe.com/biosci/genbio/virtual_labs/BL_16/BL_16.html

Digestion Lab

Today in science we learned about the digestion system. In this lab we had 4 different combinations of pepsin, hydrocloric acid, egg whites, and water. We saw that the test tube with only hydrocloric acid dissolved the most.  This is like digestion because the hydrocloric acid dissolved the food and that is what happen in our experiment.

Chicken Wing Dissection

Winging It

10-20-11

In this chicken wing dissection we were examining the anatomy of a chicken wing. We got to look at the muscles, tendons, bones, fat, skin, ligaments, an cartilage. Unfortunately, we did not get to see a nerve. We saw how the skin protected the muscles and bones, and how the muscles moved the wing. It was a  good way to see this and it helped me learn about the different tissues.