The Respiratory System

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Across
  1. 5. Folds of connective tissue that stretch across the opening of the larynx and produce a person's voice
  2. 10. Maximum volume of air that can be inhaled and exhaled with each breath
  3. 13. Tubes that branch from the trachea and lead to each lung
  4. 14. Muscle that separates the thoracic cavity from the abdominal cavity
  5. 15. Specialized secretions that prevent alveoli from sticking shut
Down
  1. 1. Respiratory organs located in the thoracic cavity
  2. 2. Finer and finer tubes that branch from the bronchi
  3. 3. The process of exchanging oxygen and carbon dioxide between an organism and its environment
  4. 4. Grapelike clusters of air sacs at the end of bronchioles
  5. 6. Mechanism of breathing where air is pulled into the lungs
  6. 7. Breathing; inhalation and exhalation of air
  7. 8. Throat; passageway for food to the esophagus and air to the larynx
  8. 9. The inhalation and exhalation of air
  9. 11. Voicebox; produces sounds by vibrating vocal cords
  10. 12. Windpipe; reinforced by rings of cartilage