Name: __________________________________________ Date: ____________ Hour: _________

Engineering Mechanisms of the Heart Lab

Purpose:

By completing this lab, students will understand the function and parts of the heart (circulatory system).

Materials:

• Plastic pipet
• Plastic tubing (airline tubing)
• Solution (200ml water and 5 drops red food coloring)
• 250 ml beaker
• Valve (air pump check valve)
• Y connector

Procedure:

Answer the questions below and follow the steps.

1. What does the pipet represent (structure) and what does it do (function) for the circulatory system?

^[1]

2. What does the tubing represent (structure) and what does it do (function) for the circulatory system?

^[2]

3. What does the solution represent (structure) and what does it do (function) for the circulatory system?

4. What does the valve represent (structure) and what does it do (function) for the circulatory system?

^[3]

5. What do the Y-connectors represent (structure) and what does it do (function) for the circulatory system? 

^[4]

6. What kind of animal would have a two-chambered heart?

7. What kind of animal would have a three-chambered heart?

8. What kind of an animal would have a four-chambered heart?

9. Design a model to show a four-chambered heart using only the equipment you were provided (pretend you have as much of the materials mentioned in #1-5 as you could want). Draw the model below.

10. After you have drawn your model, show your teacher. Once your teacher has approved your drawing, build your model and demonstrate how the circulatory system works.