Respiratory System

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Across
  1. 4. Makes blood cells red and carries oxygen in the cell
  2. 5. Carries carbon dioxide out the lungs
  3. 8. Holds the vocal cords
  4. 9. Process of blood flowing to lungs
  5. 10. A molecule made when ten percent of carbon dioxide binds to a hemogoblin
  6. 11. Alternative way of breathing
  7. 12. Folds to food and liquid from entering the larynx
  8. 13. Beginning of the respiratory system. Filters and makes air warm
  9. 15. Process of oxygen and carbon dioxide flowing into our lungs
  10. 17. Part of the brain that controls the rate of breathing
  11. 18. Small sacs where lungs and blood exchange carbon dioxide and oxygen
Down
  1. 1. Part of the brain that sends signals to muscles to help you breathe
  2. 2. Contracts to create an air vacuum and forces air into the lungs
  3. 3. Allows air to travel to epiglottis
  4. 6. Small blood vessels that cover the alveoli
  5. 7. Made in the bicarbonate buffer system where carbon dioxide bonds with water found in blood
  6. 10. Enzyme for carbonic acid
  7. 14. Carries air into lungs and alveoli
  8. 16. Inhales oxygen and exhales carbon dioxide