15(1) - Respiratory System

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Across
  1. 1. Lungs contain 150 million...
  2. 4. Also known as the voice box
  3. 5. Also known as the windpipe
  4. 6. Walls dominated by smooth muscle.
  5. 8. Two of them. Inside of the Trachea.
Down
  1. 2. Prevents entry of liquids and food into Respiratory tract.
  2. 3. From soft palate to base of tongue, Pharynx subdivison
  3. 5. Type of vocal cords that are the lower part of ligament.
  4. 7. Also known as the Pharynx