Cardiovascular System

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Across
  1. 5. two largest veins in the body
  2. 6. vein that carries oxygenated blood from the lungs to the heart
  3. 9. fluid tissue responsible for transporting oxygen and nutrients in the body
  4. 12. machine that can measure the heart's electrical wave movements
  5. 15. major arteries that carry blood upward to the head
  6. 16. this node is one of the nodes that controls electrical impulses of the conduction system
  7. 18. smallest blood vessels in the body
  8. 19. fibers that relay electrical impulses to the ventricles causing them to contract
Down
  1. 1. this circulation does not involve the flow of blood between the heart and lungs
  2. 2. node responsible for establishing the rhythm and rate of the heartbeat
  3. 3. blood vessels that have valves
  4. 4. name of this valve means bishop's hat
  5. 7. middle, thickest layer of the heart
  6. 8. also known as the pericardial sac
  7. 10. the name of the upper chambers of the heart
  8. 11. this complex shows the contraction of the ventricles
  9. 13. within an artery
  10. 14. largest blood vessel in the body
  11. 17. means relating to the veins