Friday, March 15, 2013

mini lung!

its so cute. just pull the bottom down and WHOOSH











The Process of Breathing:

When you inhale, the diaphragm contracts, and moves DOWN. The rib cage expands and swings up and out and the muscles contract, allowing optimum space for air to fill the lungs. When you exhale, the diaphragm relaxes and moves up, the rib cage swings down and in, and the muscles relax, pushing air out. 

1 comment:

  1. Explain how inhalation and exhalation work and repost...
    Ms. Phillips

    ReplyDelete