The Heart

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Across
  1. 3. contains fluid to reduce friction
  2. 4. where the heart is located
  3. 9. separates the right and left sides of the heart
  4. 14. Pulmonary- Blood travels to the __________ and then back
  5. 16. relaxation of the heart
  6. 17. the valves are anchored to the ventricles by cords called _______.
  7. 18. outer layer, reduces friction
Down
  1. 1. middle layer, mostly cardiac muscle
  2. 2. pericardium encloses the heart (like a bag) and has 2 layers
  3. 5. thin inner lining, within the chambers of the heart
  4. 6. the chordae tendineae are attached to this muscle.
  5. 7. circulation- eliminates carbon dioxide and oxygenation blood (lung pathway)
  6. 8. contraction of the heart
  7. 10. valve separating the right atrium and right ventricle
  8. 11. the flaps of the valves
  9. 12. circulation- delivers blood to all body cells and carries away waste
  10. 13. valve separating the left atrium and left ventricle
  11. 15. Systemic- blood travels to the _______ and back again