Frog Dissection

For this lab we were asked to dissect a grass frog in the timeline of a week to have a better understanding on body systems. While dissecting the frog we had to record our findings on a lab packet.

The body systems we were asked to investigate were the Cardiovascular system, skeletal system, digestive system, circulatory system, muscular system, respiratory system, reproductive system and the nervous system.

Frogs fall into the Chordate Deuteronomy , and their class is Amphibians.

In Chordates there are four common features which appear during development: a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail.

In Amphibians there are five main characteristics that differentiate amphibians from other chordates. They are having unshelled eggs, having permeable skin, being carnivorous adults, distribution, and having courtship rituals.

Three things I learned about how the frog body systems compares to human are that frogs only have three chambers in their heart unlike humans which only have 4 chambers. The second thing that I learned that their digestive system is larger compared to their body, and ours compared to our body size i small. The third thing that I learned about frogs is that they only have one opening for all its excretory and reproductive purposes. Unlike frogs, humans have more than one opening for those purposes.

My favorite thing about the lab is that we got to dissect the frog. My least favorite thing was the smell and that we ha to write a lot while doing the dissection.

One question i still have is that if frogs can breathe through their skin why do they still need lungs?

Something I did well during this dissection was having good collaboration skills. I was able to dissect most of the frog and helped my partner find the parts of the frog. One thing that I should work on the next project is being a critical thinker. During this project most of the things we had to do were not very difficult.