Circulatory/Respiratory CASE STUDIES General Questions

1. Trace a drop of blood from the heart to the body and back to the heart. 
2. Distinguish between arteries, veins and capillaries both functionally and structurally.  Describe the composition and functions of blood.
3. Describe the mechanics of breathing. Include the relationship between pressure and volume.  
4. How are oxygen and carbon dioxide transported in the blood? 

Diagrams will probably be very helpful when answering these questions. Please try to be thorough, but concise. Try to avoid repeating yourself.