The Heart

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Across
  1. 2. Where does the pulmonary system pump the blood to?
  2. 4. ____ in the heart is where blood can flow through the septum.
  3. 5. Word meaning relating to the heart.
  4. 8. The _____ are smaller than the ventricles of the heart.
  5. 9. The liquid that flows through the heart.
  6. 11. The pulmonary artery is unique because it is the only artery to carry ___________ blood.
  7. 14. The heart acts as a _____ for the body, pushing blood round it.
  8. 15. What is it called when the heart relaxes to allow blood to fill the heart?
  9. 17. The ventricles and atria are all these.
  10. 19. Carries oxygenated blood from the heart to the body.
Down
  1. 1. The left ventricle of the heart provides a ______ pressure than the right ventricle.
  2. 3. Cava Carries deoxygenated blood to the heart, from the body.
  3. 4. What organ is this crossword about?
  4. 5. What arteries run across the surface of the heart, providing it with necessary oxygen?
  5. 6. Which system pumps the blood to the body?
  6. 7. The heart of what animal is almost as large as a mini?
  7. 10. _________ valves prevent backflow from arteries leaving the heart.
  8. 12. A natural ______ grows around blockages in the coronary arteries.
  9. 13. How many times does the blood pass through the heart in one full passage through the body?
  10. 16. What stop the backflow of blood in the heart?
  11. 18. What separates the left and right sides of the heart?