HUMAN RESPIRATORY SYSTEM

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Across
  1. 2. Epithelium The nasal chamber is provided with a pocket of sensory cells.
  2. 5. Muscles These muscles run obliquely from one side of he rib to the next.
  3. 6. anhydrase The enzyme that helps convert carbon dioxide into bicarbonate ion.
  4. 8. The wind pipe is guarded by a muscular flap.
Down
  1. 1. The inflammation of the bronchi.
  2. 3. The structure in the Human respiratory system which is devoid of cartilage
  3. 4. oblongata The respiratory centre is located in.
  4. 7. fluis It provides lubrication for the free movement of the expanding and contracting lungs.