Respiratory System

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Across
  1. 1. The amount of air exhaled after a normal inhalation
  2. 4. The diaphragm and intercostal muscles contract during this process
  3. 6. This double membrane creates a vacuum seal around the lungs
  4. 8. Where the vocal chords are located
  5. 9. The structure that connects the nasal and oral cavities
  6. 10. This gas is removed from the blood in order to be exhaled
  7. 11. The flap of tissue that prevents food from entering the trachea
Down
  1. 2. A chronic lung condition that causes the airways to narrow
  2. 3. The movement of gases from an area of high concentration to low concentration
  3. 5. These tubes carry air deep into the lungs, ending in the alveoli
  4. 6. According to Boyle's law, when when volume increases, this decreases.
  5. 7. An insect has this type of respiratory system