Respiratory System

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Across
  1. 1. tiny blood vessels that covers the walls of the alveoli
  2. 4. released from your body when you exhale
  3. 5. also known as windpipe
  4. 6. a sticky substance that warms up the incoming air and lubricates the inside of the nose
  5. 9. where the lungs and the blood exchange oxygen and carbon dioxide during the process of breathing in and breathing out
  6. 10. allows the exchange of gases within the cells through inhaling and exhaling
  7. 11. tiny hairs in the nose that filters the air
  8. 12. allows us to breathe
  9. 13. tiny branch of air tubes in the lungs
Down
  1. 2. filters the carbon-dioxide that enters the body
  2. 3. it humidifies and warms the inspired air
  3. 7. receives air from the nasal cavity and food, and water from the oral cavity
  4. 8. carry air into your lungs
  5. 12. also known as voice box
  6. 14. the energy-producing chemistry that drives the metabolisms of most living things