The Respiratory System

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Across
  1. 4. Occurs in three phases that include the respiratory and circulatory systems, gases are transferred across cell membranes
  2. 6. Large air passage expanding from the trachea to the lungs
  3. 8. The movement of air from the atmosphere and into the lungs throughout the breathing process
  4. 9. A hollow tube that passes air from the throat to the trachea, holds the vocal cords
  5. 10. The windpipe,extending from the larynx to the bronchial tubes
  6. 11. A pair of organs used for breathing and located in the chest
  7. 12. Separating the abdominal cavity from the thoracic cavity and its contraction inflates the lungs
Down
  1. 1. The process of taking in and releasing air through the lungs and respiratory system
  2. 2. A cavity located behind the nose and mouth, carries food, fluid, and air down through the nose and mouth
  3. 3. Reduces surface tension, keeps alveoli walls from sticking together from its secretions
  4. 5. Where the oxygen breathed in passes and is exchanged for carbon dioxide at,shares a membrane with blood capillaries
  5. 7. the maximum volume of air that the lungs can expel after after the deepest possible breath