Respiratory System

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Across
  1. 1. – The voice box.
  2. 5. – The throat where air passes.
  3. 6. cavity – Cleans and warms the air.
  4. 8. – A muscle that helps breathing.
  5. 9. – Tiny air sacs for oxygen exchange.
Down
  1. 2. The body system that helps us breathe.
  2. 3. – Organs where gas exchange happens.
  3. 4. – Tubes that lead air into the lungs.
  4. 7. – The windpipe that carries air.