Thursday, December 15, 2011

Frog Dissection

http://science.howstuffworks.com/environmental/life/zoology/reptiles-amphibians/frog.htm
http://www.amphibiainfo.com/biology/anura/
In science class we dissected a frog. The first thing we did was place the frog in the dissection pan. Then we used the scissors to cut the abdominal muscles away from the body cavity. Next,we made horizontal cuts near the arms and legs.  We then lifted the flaps of the body wall and pinned them back.  We named all the organs and then removed them.  Some of the organs were: fat bodies-spaghetti shaped structures that are bright orange or yellow; peritoneum-a spiderweb like membrane that covers many of the organs; liver-brown colored with three lobes, it is the largest structure of the body cavity; heart-a triangular structure that can be found at the top of the liver;lungs-located underneath the heart and liver; gall bladder-small green sac under the liver; stomach-curves underneath the liver; small intestine-leads from the stomach; large intestine-located if you follow the small intestine down, also known as cloaca; spleen-a red spherical object that hold the blood; esophagus-it is at the top of the stomach.  This experience has unlocked so much knowledge for me. It has taught me how to dissect a frog and what the frog's body parts are. I really really enjoyed this lab I hope we could do things more like this in the future.

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