Respiratory System By: Sean and Allison

123456
Across
  1. 5. The______contracts when you breathe in and moves downward.
  2. 6. You swallow about__________or more icky mucus made from the airways.
Down
  1. 1. Your______lung is a tiny bit smaller than your right lung.
  2. 2. The Respiratory System transfers________to the body’s cells.
  3. 3. sacs/ _________transfer the oxygen to the blood.
  4. 4. Cavity/ _________heats and purifies air that passes through.
  5. 6. Cardiovascular system/ ________makes sure that the oxygen-rich blood flows naturally.