EKG Chapter 3 Crossword Puzzle

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Across
  1. 1. The study of the structures of the body
  2. 2. changes that cause a response in the body
  3. 4. phase when the heart contracts
  4. 5. vessels that carry blood away from the heart
  5. 7. Two tubes that take air to the lungs
  6. 9. phase when the heart relaxes
  7. 10. White blood cells
  8. 13. air sacs in the lungs
  9. 14. the outermost layer of the heart
  10. 15. formed elements that aid in clotting
Down
  1. 1. Two upper chambers of the heart
  2. 3. the middle and thickest layer of the heart
  3. 6. The study of how various body systems work
  4. 8. A state of balance and stability in the body
  5. 11. Red blood cells
  6. 12. Blood vessels that carry blood toward the heart