Review of The Circulatory System

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Across
  1. 1. ... allow the exchange of water, oxygen, carbon dioxide, digested food, and waste products between blood and cells.
  2. 3. Our heart is made of a special muscle called the heart ...
  3. 6. The heart pumps ... to all parts of the body.
  4. 8. White blood cells help detect invading ...
  5. 9. As blood goes around our body, it picks up carbon dioxide and waste substances produced by our ...
  6. 11. Our ... rate increases when we are running.
  7. 14. Our blood carries oxygen, digested food, and ... to all parts of our body.
  8. 16. ... is when fatty substances may collect on the inner walls of our arteries and it stiffen.
  9. 20. When the white blood cells multiply abnormally, the person’s condition is ...
  10. 21. Blood is pumped to various parts of our body as a result of the ... of our heart muscle.
  11. 22. ... generally carry blood that is poor in oxygen.
Down
  1. 2. ... generally carry blood that is rich in oxygen.
  2. 4. Our heart, blood vessels and the blood that flows through them, together, form the ... system.
  3. 5. ... are tubes that carry blood to all parts of our body.
  4. 7. ... is also known as high blood pressure.
  5. 10. Age may affect our heart ...
  6. 12. Hypertension can lead to ...
  7. 13. ... is caused by a lack of iron in our diet or large amounts of blood loss.
  8. 15. Our circulatory system is made up of our heart, our blood, and the ... they contain.
  9. 17. The heart receives blood rich in ... from the lungs.
  10. 18. The heart pumps digested ... to all parts of the body.
  11. 19. There are three types of blood vessels in our body, they are capillaries, ... , and vein.