Cardiovascular system

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Across
  1. 2. / a smooth layer of cells that lines the inside of the heart.
  2. 5. / this side receives oxygenated blood
  3. 6. / this valve is located between the right ventricle and the pulmonary artery
  4. 9. / connects arterioles with venules
  5. 10. / fluid that makes blood.
  6. 12. / the smallest veins.
  7. 13. / this side receives deoxygenated blood.
  8. 14. / a double-layered membrane that covers the outside of the heart
  9. 15. / the thickest, muscular layer.
  10. 17. / smallest arteries
  11. 18. / a complex protein composed of the protein molecule called globin and the iron compound called heme.
  12. 19. / this valve is located between the right atrium and the right ventricle.
Down
  1. 1. / blood flows into this chamber after entering the superior and inferior vena cava
  2. 3. / located between the left ventricle and the aorta
  3. 4. / blood vessels that have valves in them.
  4. 6. / a small battery-powered device with electrodes.
  5. 7. / this is another word for "mitral"
  6. 8. / seperates the heart into a right side and left side.
  7. 11. / the two lower chambers
  8. 16. / the largest artery in the body.