Andrew Trask Unit 4

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Across
  1. 4. Veins into the heart from the lungs
  2. 7. top chambers of heart
  3. 9. are small blood vessels that connect arteries to capillaries
  4. 11. is the muscular wall of the heart (heart muscle)
  5. 12. is the inner layer
  6. 16. are small blood vessels that connect capillaries and veins
  7. 17. the node that signals the ventricles to squeaze
  8. 19. is the term used to describe the delivery of oxygen rich blood to the body and its return
  9. 20. the node that starts the process of beating
Down
  1. 1. is the middle layer
  2. 2. refers to the movement of blood between the lungs and the heart
  3. 3. is the outermost layer (aka Tunica Adventitia)
  4. 5. Bottom chmabers of heart
  5. 6. the vessels leading to the lungs (deoxygenated)
  6. 8. where blood flows into heart
  7. 10. a valve between the atria and ventircles
  8. 13. artery that supplies blodd to the heart
  9. 14. the cells of the tunica externa
  10. 15. the artery that blood flows out of
  11. 18. carry blood Away from the heart (usually oxygenated)