Respiratory System

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Across
  1. 3. is a muscular tube in the middle of your neck
  2. 4. further splits into many smaller branches less than a millimeter
  3. 5. extends from the larynx toward the lungs
  4. 7. the physical structure of a person or an animal, including the bones, flesh, and organs.
  5. 8. Duct, is a tube composed of smooth muscle
  6. 11. the flow of air, especially that encountered by a human
  7. 12. box,help you speak
  8. 13. the main organ of the respiratory system
  9. 14. this body part helps you breathe
Down
  1. 1. is a sheet of muscle slung underneath the lungs
  2. 2. the red liquid that circulates in the arteries and veins of humans
  3. 6. is a cluster of many individual alveoli
  4. 7. any of the major air passages of the lungs which diverge from the windpipe
  5. 9. a cavity within a bone or other tissue
  6. 10. used to chew your food