Respiratory system

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Across
  1. 1. a respiratory condition marked by spasms in the bronchi of the lungs, causing difficulty in breathing.
  2. 4. a partition separating two chambers, such as that between the nostrils or the chambers of the heart.
  3. 7. alimentary canal that connects the throat to the stomach
  4. 8. take air into the lungs and then expel it
Down
  1. 1. the invisible gaseous substance surrounding the earth
  2. 2. a slimy substance, typically not miscible with water, secreted by mucous membranes and glands for lubrication
  3. 3. each of the pair of organs situated within the rib cage
  4. 5. breathe out.
  5. 6. relating to or affecting respiration or the organs of respiration.