Respiratory System

Hmmmm...the respiratory system? From what I learned, I think that the respiratory system is responsible for bringing Oxygen into the bloodstream and to remove gaseous wastes like Carbon Dioxide and it is also responsible for providing the whole body's Oxygen needs and to remove the Carbon Dioxide in all parts. I learned about ventilation and repiration, about the parts of the respiratory system. I learned about the upper and lower respiratory tract.

Well, it would be easier to understand this lecture if you make some charts or graphs. I wont suggest anything since Sir Gregg did a great job on teaching us this lesson :P