lungs

• We use lungs for breathing.
• We breathe in and breathe out.
• The air we breathe is called oxygen
• the lungs are like stretchy sponges that fill up with air.
• Lungs protected by the ribs.
• air moves into the blood vessels in the lungs
• Our lungs get bigger and fill with air when we breathe in.
• Air enters the body through the nose or mouth.

  then air goes down the windpipe and into the lungs.

  Air is squeezed from the lungs and travels up the windpipe.

  Lastly, Air leaves the body through the nose or mouth.