Reference no: EM132842938

https://www.youtube.com/playlist?list=PLGAEMeYLCjiO1GAwq7A2cQYVunMbhaXu6

Watch video for each animal

After watching the dissection of the Earthworm, answer the following questions.

After watching the Perch Dissection answer the following questions:

1. When he is talking about the mouth, what is he saying is different about it than other simpler kinds of fish like a lamprey?

2. What is the name of the bony covering protecting the gills?

3. Describe the cuts he makes when opening up the perch to view the internal organs.

4. What are the gonads?

5. What did he do to confirm the location of the intestine?

6. Above the swim bladder, is a brown darkish streak as described in the video. What is the name for this organ?

7. Which tube is just anterior to the stomach? (takes food from the mouth to the stomach)

8. What is the swim bladder used for? How is this done? (Explain)

9. What did he end up removing from the perch and look at in more detail? describe what it looked like.

10. What structure does the urogenital opening lead to?

After watching the Frog Dissection video, answer the following questions:

1. List some common external features seen in the bullfrog.

2. How does a frogs skin enable it to "breathe"?

3. What does the cloaca do?

4. What is the name of the 2 sets of teeth?

5. Describe how he makes his cuts to open up the frog.

6. The frog he opens up is a male. If it was a female what would be seen in much of the body cavity?

7. How many lobes of liver are present in the frog?

8. What organs look like really dark "raisins"? What is their function?

9. What is the 2 dark flat organs found on the dorsal surface of the frog?

10. There is a large intestine and a small intestine. How do they differ from each other anatomically?

After watching the Cat Dissection video, answer the following questions.

1. What is the greater omentum? What is it full of?

2. Where is the gall bladder? What is its job?

3. What is the name of the first curve of the small intestine?

4. Where can the iliocecal junction be found? What is the job of the sphincter that is found here?

5. What shape is the colon? Whose colon is longer, cats or humans? Why?

6. Where in the cavity is the spleen located?

7. What covers the heart?

8. How do human and cat lungs differ? What about cat and human liver?

9. What tube is found posterior to the trachea?

10. Where can the pancreas be found? If it was a human pancreas what would its shape be?