Systems and Organs in the Body

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Across
  1. 1. _____ circulation is transports blood between the heart and the lungs
  2. 6. ______ circulation is the flow back to the heart
  3. 7. the heart's lower chamber
  4. 10. the tough, slippery that encloses the heart
  5. 11. large blood vessels that carry blood away from the heart
  6. 12. ______ circulation is the flow of blood to the body except the lungs
  7. 13. arterioles branch out into these
Down
  1. 2. the blood that transports oxygen
  2. 3. the heart's upper chamber
  3. 4. capillaries merge into these
  4. 5. arteries branch out into these
  5. 6. the system that includes the heart, veins, and arteries
  6. 7. venules carry blood into these
  7. 8. the organ that pumps blood to the rest of the body
  8. 9. a straw colored liquid in the blood