Respiratory System

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Across
  1. 2. Protects respiratory tract from aspirating food into the trachea while breathing and allows you to talk.
  2. 4. Expands and squeezes to make us inhale and exhale.
  3. 5. Oxygen breathed in from the air passes through this and into the blood and travels to the tissues throughout the body.
Down
  1. 1. Carries air into the lungs.
  2. 3. Air enters your nostril then cilia hairs filter out dust and unwanted particles.
  3. 6. Two sacks that holds the air.