Circulatory System

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Across
  1. 1. Gap junctions that meet adjacent cardiac muscles
  2. 4. The two lower chambers of the heart
  3. 6. A muscular organ that pumps blood
  4. 10. Force of circulating blood on the walls of the arteries
  5. 11. The narrow end of the heart
  6. 14. Transports deoxygenated blood from the right side of the heart to the lungs
  7. 15. A phase of the heartbeat where the heart pumps blood out
  8. 16. Outtermost tissue layer of the heart, under the pericardial cavity
  9. 17. The thick middle layer of the heart
  10. 19. Records electrical signals from the heart
Down
  1. 2. Covers the outer surface of the heart
  2. 3. Series of pressure changes that take place in the heart
  3. 5. The largest artery and transports blood from the heart to the body
  4. 7. My full name :P
  5. 8. The two upper chambers of the heart
  6. 9. A cavity that houses the heart and other organs located between the lungs
  7. 12. Muscle tissue layer of the heart
  8. 13. Innermost layer of the heart, lines the chambers
  9. 14. A thin fluid-filled sac around the heart
  10. 15. Transports oxygen-depleted blood from the upper extremities, head, and neck
  11. 18. A phase of the heartbeat where the muscles relax and the heart fills with blood