Respiratory System words

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Across
  1. 4. the tube or cavity, with its surrounding membrane and muscles, that connects the mouth and nasal passages with the esophagus
  2. 5. the opening through which a person or animal takes in food.
  3. 6. the tube in humans and other air-breathing extending from the larynx to the bronchi.
  4. 7. an air cell of the lungs, formed by the terminal dilation of tiny air passageways.
  5. 8. a muscular and cartilaginous structure lined with mucous membrane at the upper part of the trachea in humans, in which the vocal cords are located
  6. 9. the part of the face above the mouth that contains the nostrils and organs of smell and through which a person breathes.
Down
  1. 1. located below the lungs
  2. 2. either of the two saclike respiratory organs in the thorax of humans and the higher vertebrates.
  3. 3. any of the smallest bronchial tubes
  4. 7. sacs tiny branches of air tubes in the lungs