Name #
5-8-12
Lab Report: Frog Dissection
Question:
How does the human respiratory system differ from the frog respiratory system?
Hypothesis:
(Write your hypothesis here.)
Conduct The Experiment:
Materials:
Apron
Gloves
Dissecting scissors
Scalpel
Pins
Goggles
Frog
Styrofoam plate

Procedure:
1.
Prepare for the lab.
(goggles, apron, gloves)
2.
Secure the frog with pins. (wrists, ankles)
3.
Make 3 incisions with scalpel across abdomen. (stomach area)
Draw diagram of incision here.
4.
Open the skin flaps and pin them down.
5.
Open muscle flaps and pin them down.
6.
Identify the thorax. (neck)
Draw diagram of frog here. Draw incisions here.
7.
Make 2 cuts with scissors and pin flaps back.
Redraw incision here.
8.
Identify heart. (organ in the neck)
9.
Identify liver. (looks like a large shield)
10.
Identify stomach.
11.
Identify small intestine. (located under liver)
12.
Identify the large intestine. (located under large intestine)
13.
Identify lung. (“black pea” in the neck to the left of heart)
14.
Identify bladder. (looks like a spider web, above legs)
15.
Identify kidney.

Collect Data:
Write the locations of organs and similies here.
“Located under…” “Bladder looks like a …”
Analyze Results:
My hypothesis was …. (right / wrong).
Here you need 4 sentences about how you learned that the human body is different from the frog body.