Respiratory System

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Across
  1. 2. major air passages of lungs which diverge from windpipe
  2. 3. branch in which bronchi divides
  3. 4. tube extending from back of the nasal passage & mouth to the esophagus
  4. 7. two organs that are alike bags, main breathing structure
  5. 9. opening used to eat, breathe, talk & drink
  6. 10. a channel for air flow through the nose
  7. 13. stiff walled tube that connects the pharynx with the lungs
Down
  1. 1. muscular wall separating lungs from stomach area and assists in breathing
  2. 5. two holes in your nose to breath & smell
  3. 6. pairs of serious membrane lining the thorax and enveloping the lungs in humans and animals
  4. 8. a flap of cartilage at the roof of the tongue which is depressed during swallowing to cover wind pipe
  5. 11. tiny air sacs of lungs that allow rapid gaseous exchange
  6. 12. upper part of your wind pipe, holds your vocal cords