Learn the difference between a piston pump and a diaphragm pump, both of which are positive displacement pumps. Includes chart listing characteristics for each, their different types, and their advantages and disadvantages.

What do you know about the respiratory system? Check out this site to learn more about this fascinating body system. This resource features slides of the different parts of this system.

An introduction to the form and function of the lungs, including the bronchioles and alveoli.