The Circulatory System

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Across
  1. 4. microscopic blood vessels that connect arteries and veins
  2. 7. oxygen-rich blood flows to all the organs and body tissue
  3. 8. two lower chambers of the heart that contract at the same time during a heart beat
  4. 9. requires an input of energy from the cell
  5. 10. occurs as the ventricles fill with blood just before they contract
  6. 12. occurs when material moves from an area where there is more substance to an area where there is less substance
  7. 13. blood vessels that carry blood away from the heart
  8. 15. flow of blood to and front eh tissues of the heart
  9. 18. a hollow muscular organ that pumps blood through the circulatory system
  10. 19. contracts and forces the blood into the left ventricle
Down
  1. 1. results when the heart cannot pump blood efficiently
  2. 2. occurs when blood pressure is higher which puts extra strain on the heart
  3. 3. carry blood to every part of your body
  4. 5. occurs when the ventricles contract and the blood is pushed out of the heart
  5. 6. flow of blood through the heart to the lungs and back to the heart
  6. 9. two upper chambers of the heart that contact at the same time during a heart beat
  7. 11. blood vessel that carries blood back to the heart
  8. 14. the force of the blood on the walls of the blood vessels
  9. 16. contracts forcing the blood to the right ventricle
  10. 17. occurs when fatty deposits build up on arterial walls