Respiratory & Cardiovascular System

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Across
  1. 2. The voice box that keeps airway open and produces sounds.
  2. 5. Number of heartbeats per minute
  3. 7. Two organs where gas exchange occurs.
  4. 8. A condition that makes breathing difficult due to narrowed airways.
  5. 10. Smaller branches of the bronchi inside the lungs.
  6. 11. The force of blood pushing against the artery wall.
  7. 13. A muscle below the lungs that helps with breathing.
  8. 15. Two main air tubes that branch from the trachea into the lungs.
  9. 16. A muscular organ that pumps blood throughout the body.
  10. 18. A harmful habit that damages the respiratory system.
  11. 19. Blood vessels that carry blood back to the heart.
Down
  1. 1. Space inside the nose that warms and filters air.
  2. 3. The rhythmic beating felt in arteries as the heart pumps.
  3. 4. Tiny blood vessels where oxygen and nutrient exchange occurs.
  4. 6. A doctor who specializes in diagnosis and treating heart conditions.
  5. 9. The sound of the heartbeat caused by heart valves closing as blood moves through the heart.
  6. 10. A fluid that carries oxygen, nutrients, and wastes.
  7. 12. Passageway for air.
  8. 14. Tiny air sacs where oxygen and carbon dioxide are exchanged.
  9. 17. Blood vessels that carry blood away from the heart.