Cardiovascular System

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Across
  1. 1. sound the heart makes ; closing of valves
  2. 4. Proteins that sit on RBC and carries oxygen
  3. 5. thick wall of muscle that separates right and left sides of the heart
  4. 6. the two lower chambers of the heart. they pump blood out to the lungs and body.
  5. 9. the right atrioventricular valve which consists of three cusps.
  6. 12. repeataed contraction and relaxation of the heart muscle
  7. 13. 44% of blood also known as red blood cells.
  8. 14. a "wave" of blood felt in blood vessels near surface of skin
  9. 15. a vein carrying oxygenated blood from the lungs to the left atrium of the heart.
  10. 16. large vein that brings oxygen-poor blood from the upper part of the body to the right atrium.
Down
  1. 2. is a dual flap valve in the heart that lies between the left atrium and left ventricle
  2. 3. .5% of blood also known as platlets
  3. 7. .5% of blood also known as white blood cells .
  4. 8. instrument used to listen to the heart
  5. 10. brings oxygen poor blood from the lower part of the body to the right atrium.
  6. 11. organ made of muscle that pumps blood
  7. 17. 55% of blood
  8. 18. vessels that carry blood to the heart from the venules
  9. 19. are muscular blood vessels that carry blood away from the heart
  10. 20. the large trunk artery that carries blood from the left ventricle of the heart to branch arteries