Circulatory

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Across
  1. 5. travel in blood to infections; part of the immune system
  2. 10. muscular organ that pumps blood around the body
  3. 11. liquid that circulates the body: responsible for delivering oxygen and nutrients, and removing wastes
  4. 14. blood without oxygen
  5. 16. liquid within blood that contains water, other nutrients, and waste from cells
  6. 17. substances a cell needs for survival
  7. 18. organs responsible for breathing, and the site of gas exchange
Down
  1. 1. cells within blood that transport oxygen to other cells of the body
  2. 2. small fragments that travel in the blood and are responsible for blood clotting
  3. 3. large blood vessels that go from the heart to the rest of the body
  4. 4. substances a cell needs to excrete
  5. 6. the speed at which the heart beats
  6. 7. small blood vessels that carry blood to the cells of the body
  7. 8. chambers in the heart that pump blood out of the heart
  8. 9. tube structures that carry blood around the body: includes arteries, veins, and capillaries
  9. 12. blood with oxygen
  10. 13. large blood vessels that go from the body to the heart
  11. 15. chambers in the heart that receive blood and pass it to a ventricle