Cardiovascular Crossword!

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Across
  1. 2. Upper chamber of the heart that receives blood (think Latin word for entrance).
  2. 3. Blood vessel that returns deoxygenated blood to the heart.
  3. 7. Structure that prevents the backflow of blood in the heart and veins.
  4. 8. A heart attack (put a dash between words)
  5. 9. Arteries that supply oxygenated blood to the heart muscle (put a dash between words).
  6. 10. A protein in red blood cells that carries oxygen.
  7. 11. Blood vessel that carries oxygenated blood away from the heart.
  8. 12. When your heartbeat is... out of rhythm.
  9. 14. Tiny blood vessels where the exchange of gases and nutrients occurs.
Down
  1. 1. The heart’s natural pacemaker; which initiates the heartbeat(put a dash between words).
  2. 4. The force exerted by the heart in the pumping of blood. Can be high, normal, or low (put a dash between words).
  3. 5. Lower chamber of the heart that pumps blood out.
  4. 6. The liquid portion of blood that carries cells and nutrients. Sometimes people use it in spa treatments.
  5. 11. A huge curved vessel that delivers oxygenated blood to the body (suuper big).
  6. 13. Muscular tissue of the heart.