• respiratory system
     Help
  • TWO processes of BREATHING:
    1. inhalation 2. exhalation
  • What is inhalation?
    breathe IN
  • What is exhalation?
    Breathe OUT
  • Unlock this slideshow and over 4 million more with Baamboozle+
    Try slideshows
    • Your experience on this site will be improved by allowing cookies.