Respiratory System

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Across
  1. 4. movement of respiratory gases between the atmosphere and the systemic cells of the body.
  2. 7. forms the rounded floor of the thoracic cavity and is dome-shaped when relaxed.
  3. 8. small air-filled dilation at the terminal end of the respiratory zone.
  4. 9. patent open tube that serves as a passage way for air.
  5. 10. movement of air out of the alveoli.
Down
  1. 1. middle pharyngeal region.
  2. 2. the air in the environment that surrounds us.
  3. 3. membrane, thin wall between the air with the alveolar lumen and the blood within the pulmonary capillary.
  4. 5. zone, structures include the passageways from the nose to end of the terminal bronchioles.
  5. 6. frequency of sound waves.