Cardiovascular & Lymph Systems

12345678910111213141516171819
Across
  1. 2. Two-cusped valve between the left atrium and left ventricle
  2. 3. Largest artery in the body
  3. 6. Smooth inner lining of the heart chambers
  4. 8. Double-walled sac that surrounds the heart
  5. 9. Swelling caused by excess fluid in tissues
  6. 12. Tiny vessel where gas and nutrient exchange occurs
  7. 16. Narrowing of blood vessels that reduces blood flow
  8. 18. Valve that controls blood flow from the right ventricle to the lungs
Down
  1. 1. Small branch of an artery leading to capillaries
  2. 4. Three-flapped valve between the right atrium and right ventricle
  3. 5. Widening of blood vessels that increases blood flow
  4. 7. Blood vessel that returns blood to the heart
  5. 10. Localized collection of blood outside blood vessels
  6. 11. Muscular middle layer responsible for heart contractions
  7. 13. Valve that prevents backflow from the aorta into the left ventricle
  8. 14. Outermost layer of the heart wall
  9. 15. Small blood vessel that drains blood from capillaries
  10. 17. Wall that separates the right and left sides of the heart
  11. 19. Blood vessel that carries blood away from the heart