Y- Respiratory System Vocab

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Across
  1. 3. branching tubes from the trachea (in each lung) leading to the alveoli
  2. 6. pair of organs that supply the body with oxygen, and removes carbon dioxide from the body
  3. 8. muscle below the lungs that help the lungs inhale and exhale
Down
  1. 1. windpipe; tube that leads into the lungs
  2. 2. the hollow muscular organ forming an air passage to the lungs and holding the vocal cords in humans and other mammals; the voice box.
  3. 4. nasal cavity; external enter and exit point for air
  4. 5. tiny air sacs; pick up carbon dioxide waste and distribute fresh air to the blood
  5. 7. small flap that covers the trachea when eating
  6. 9. system that allows a person to breathe and exchange oxygen and carbon dioxide (CO2) throughout the body