THE HEART AND HEART DISEASE

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Across
  1. 3. A balloon like swelling of the artery, which could lead to a haemorrhage(bleeding).
  2. 4. Muscle fibres responsible for conducting waves of electrical activity onto the walls of the right and left ventricle.
  3. 5. When an area of the heart is totally cut off from it's blood supply, receiving no oxygen.
  4. 7. Connected to the right ventricle and carries deoxygenated blood to the lungs.
  5. 10. link the atria to the ventricles and stop blood flowing back into the atria when ventricles contract.
  6. 13. Connected to the left ventricle and carries oxygenated blood to all parts of the body.
  7. 14. Saturated fatty acids in the blood due to certain high fat diets.
  8. 17. A measure of the probability that damage to health will occur as a result of a given hazard.
Down
  1. 1. Hearts pacemaker which sends out regular waves of electrical activity to the atrial walls.
  2. 2. Link the ventricles to the pulmonary artery and aorta, and stop back flow of blood after ventricle's have contracted.
  3. 6. Responsible for passing electrical activity onto the Bundle of his.
  4. 7. Connected to the left atrium and brings oxygenated blood back from the lungs.
  5. 8. The volume of blood pumped during each heartbeat, measured in cm3
  6. 9. Excessive stree, certain diets, lack of exercise all increase the risk of CHD through increases in...
  7. 11. Connected to the right atrium and brings deoxygenated blood back from the body.
  8. 12. Fatty deposits in the walls of arteries, often associated with high cholesterol levels in the blood.
  9. 15. the number of beats per minute
  10. 16. Formation of a blood clot, which can cause complete blockage of the artery.