Circulatory system

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Across
  1. 3. cell required for clotting of the blood
  2. 6. blood vessels that connects arterioles and venules and allowes for exchange of nutrients and gases between the blood and the body cells
  3. 7. Ventricle:recives blood form the right atrium and pumps the blood into the pulmonary artery
  4. 8. System:transportation system of the body
  5. 10. layer of the heart
  6. 12. muscular wall that seperates the heart into a right and a left side
  7. 15. blood cells
  8. 17. iron-containing protein if the red blood cells;serves to carry oxygen from the lungs to the tissues
  9. 20. Ventricle:recives blood from the left atrium and pumps the blood into the aorta for transport
  10. 21. vessel that carries blood away from the heart
Down
  1. 1. vessel that carries blood back to the heart
  2. 2. sac that covers the outside of the heart
  3. 4. Valve:flap or cusp between the left atrium nad left ventricle
  4. 5. Valve:flap or cusp between the right ventricle of the heart and the pulmonary artery
  5. 9. portion of the blood
  6. 11. blood cells
  7. 12. period that follows the rest period in the cardiac cycle of ventricular contraction
  8. 13. Valve:located between the left ventricle and the aorta
  9. 14. smooth layer of cells that lines the inside of the heart and is continuous with the inside blood vessels
  10. 16. brief period of rest in the cardiac cycle
  11. 18. that circulates throughthe vessels in the body to carry substances to all the body parts
  12. 19. Valve:flap or cusp between the right atrium and the right ventricle in the heart