Body Parts-functions

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Across
  1. 2. They inflate and deflate while breathing.
  2. 5. The joint that connects your hand and your forearm.
  3. 7. It pumps blood to all parts of our body.
Down
  1. 1. We use them to hear.
  2. 3. A sense organ to smell.
  3. 4. They are 206 in number.
  4. 6. It is the storehouse of knowledge.