The Fish

I wanted to find out what was inside the fish and what the brain looked like. We went to a supermarket and bought a fish. The name of this fish was Bass. He was a beautiful fish. He was gray and green on the top and white on the bottom. He had stripes along his body.


He had two fins onthe top of his back. He also had two fins on the sides behind his gills, two fins on the bottom and one fin near the tail. Some goldfish have two tails but this one had only one.


In his mouth he had teeth which are very small, but there are a lt of them and a tongue. I knew fishes had tongues because I know of that shrimp that gets inside a fish an sucks the blood out its tongue and it replaces the tongue with itself and serves as its new tongue. This is very strange. But it is not about this fish.






Behind the covers on the sides of its head there are its gills. He uses gills for breathing. The fish opens and closes the covers to pump water through them. But sharks can't. So they have to always keep swimming so that they can breathe.





Then we cut the fish open. I didn't know this but there were only a few things inside the fish. They were intestines, stomach, heart, liver and gonads. There was also kidneys but they were small. And there was a swimbladder. And also pyloric caeca. And spine.





This is the fish's heart. It was small. It was hiding between its head and liver. It had the blood in it.






This is the stomach, pyloric caeca and intestines all in one pile. They were hard to separate. We opened the stomach and found there a half-digested worm.







This is a picture of the liver. It makes enzymes that help digestion. Enzymes are chemicals that help chemical reactions in the body. Enzymes break down food and turn it into energy. Livers also cleans up the body by filtering the junk out of blood. 













These are the gonads.









Gills.