PUZZLE - 3 @ LIFE PROCESSES

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Across
  1. 3. It is a bigger wind pipe in the respiratory system.
  2. 4. It is a flap like structure present in the pharynx to regulate the movement of food & air.
  3. 6. These are the respiratory organs in in a fish.
  4. 8. It is a process of breathing air out of the lungs.
  5. 10. It is secreted in nosal cavity to moisten the breath-in air.
  6. 11. It is the junction part at which digestive & respiratory tracts are intersected each other.
  7. 12. These are the smallest wind pipes with micro air-sacs at it's tip.
Down
  1. 1. These are the openings of our respiratory system.
  2. 2. These are the functional parts of the lungs & form as clusters.
  3. 5. It is a process of breathing air into the lungs.
  4. 7. These are present in matured stems & helpful in gaseous exchange.
  5. 9. It is made up of cartilage containing vocal cords to produce sounds.