Thursday, January 5, 2012

Respiratory System

Respiratory System
  1. air breathing
  2. gas exchange occurs through respiration in alveoli
    1. small blood vessel-lined sacs where oxygen is taken in by the blood cells and carbon dioxide is given off
  3. the lung can be unilobed or bilobed
  4. few alveoli in lungs which limit the amount of oxygen taken in at one time which helps explain why they move at a slow pace.
Posted by at

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)