Science class respiratory system

Edit Answers
1234567891011121314151617181920
Across
  1. 1. one of the three steps of respiration that is when Co2 swaps with o2.
  2. 4. Commonly named the throat
  3. 5. the bone that holds your ribcage together
  4. 6. the rings that are in your neck
  5. 7. Commonly known as the windpipe
  6. 9. one of the three steps of respiration that is when you inhale oxygen and exhale co2
  7. 11. commonly known as the voicebox
  8. 13. the system that helps us breathe
  9. 16. a more, bigger word for inhaling
  10. 17. the muscle that assists the lungs in breathing
  11. 19. the bones that hold the lungs and heart together inside of your body
  12. 20. scientific name for nose
Down
  1. 2. the veins inside of the aveolli
  2. 3. small branches inside of the lungs
  3. 7. one of the three steps of respiration that is when c02 goes from the body to the lungs to be expelled and o2 goes from the lungs into the body
  4. 8. control system the area of the brain that controls the respiratory system
  5. 10. what represents the look of grapes
  6. 12. a more scientific word for exhaling
  7. 14. a more scientific word for breathing
  8. 15. Full of air
  9. 18. the area between the neck and the lungs also known as the windpipe