CARDIO CHAOS - A Crossword Challenge

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Across
  1. 2. the organ that pumps blood
  2. 4. the only artery that carries deoxygenated blood
  3. 5. cardiovascular problems often present as pain in the _________ region
  4. 10. heart rate that exceeds 100 bpm
  5. 12. irregular rhythm of the heart is known as _________.
  6. 14. persistantly elevated blood pressure results in what disease?
  7. 15. the largest artery in the body.
Down
  1. 1. the smallest blood vessel
  2. 3. which nerve causes the classic left arm referred pain in heart attacks?
  3. 6. the waves in an ECG
  4. 7. the heart’s natural pacemaker is the ________ node.
  5. 8. Ion responsible for cardiac muscle contraction
  6. 9. specialised fibres responsible for impulse conduction in the ventricle walls.
  7. 11. crushing chest pain
  8. 13. the structure that separates the two halves of the heart