Respiratory System Crossword

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Across
  1. 6. The channel allowing air to enter the lungs.
  2. 7. Layers of muscles between the ribs that are crucial for breathing and stabilizing the chest.
  3. 9. The gas that is inhaled and is a key part of cellular respiration.
  4. 10. The gas byproduct of respiration.
  5. 11. Connects nasal cavity and mouth to larynx and esophagus
  6. 13. Tiny blood vessels that surrounds the alveoli and picks up oxygen where gas exchange occurs
  7. 15. Large tubes that carry air from the Lungs to the Trachea.
  8. 16. When carbon dioxide enters the blood the pH ______.
  9. 17. oxygen enters the ______ which then goes to the rest of the body through oxygenated blood
  10. 18. A grape like sac ar which is where gas exchange occurs.
  11. 19. The difference in pressure allows the movement of oxygen and carbon dioxide between the lungs and blood.
Down
  1. 1. The process of diffusion of oxygen into the blood and carbon dioxide into the lungs through the alveoli and capillaries
  2. 2. Made out of cartilage the C ringed structure supports, and provides structure preventing airways from collapsing.
  3. 3. Circulates blood to all parts of the body from the heart.
  4. 4. The muscle that separates the chest from the abdomen and helps with breathing.
  5. 5. Directs blood towards the heart.
  6. 8. Blood with low oxygen and high carbon dioxide concentration.
  7. 9. Blood with high oxygen and low carbon dioxide concentration.
  8. 12. Using hemoglobin, the ______ carries oxygen throughout the body.
  9. 14. When a person's surroundings has less ______, diffusion becomes far more difficult, making it dangerous.
  10. 15. Minute branches where the Bronchus spreads