Unit 3A Crossword 1

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Across
  1. 5. valve located between right atrium and left ventricle
  2. 7. circuit pump of the right side of the heart
  3. 9. valve located between left atrium and left ventricle
  4. 10. middle wall of heart muscle
  5. 13. outer wall of heart muscle
  6. 15. lower heart chamber pumping blood to the body (two words)
  7. 16. upper heart chamber receiving oxygen-rich blood (two words)
  8. 18. valve located between right ventricle and pulmonary artery (two words)
  9. 19. vessel through which blood leaves the right ventricle (two words)
Down
  1. 1. upper heart chamber receiving oxygen-poor blood (two words)
  2. 2. inner wall of heart muscle
  3. 3. surrounds entire heart, creating frictionless environment
  4. 4. pointed end of the heart pointing down to left hip
  5. 6. vessels supplying blood to left atrium (two words)
  6. 8. lower heart chamber pumping blood to the lungs (two words)
  7. 11. superior and inferior veins supplying blood to right atrium (two words)
  8. 12. circuit pump of the left side of the heart
  9. 14. valve located between left ventricle and aorta (two words)
  10. 17. vessel through which blood leaves the left ventricle