1.1 - The cardiovascular system

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Across
  1. 4. SA node - atrial systole - AV node - Bundle of His - Purknje fibres - ventricular systole
  2. 8. type of stroke that occurs when a blood clot stops the blood supply
  3. 9. no. of beats per minute
  4. 13. the volume of blood pumped out of the left ventricle per beat // avg at rest = 70 ml
  5. 14. the nervous system that slows down heart rate and controls the bodys rest and digestion
  6. 19. the pressure in the arteries when the ventricles are contracting
  7. 21. the volume of blood pumped out of the left ventricle per minute
  8. 23. detect chemical changes in the blood // found in cartoid arteries and the aortic arch // sends info to the medulla to stimulate the SNS
  9. 26. the pressure in the arteries when the ventricles are relaxing
  10. 28. deoxygenated blood to the lungs
  11. 31. the process where fatty-deposits build up
  12. 32. oxygenated blood to the body
  13. 33. the redistribution of blood
  14. 35. occurs when the blood supply to the brain is cut off
  15. 36. the return of the blood to the right side of the heart via the vena cava
  16. 37. type of stroke that occurs when a weakened blood vessel that suuplies the brain with blood bursts
  17. 38. the difference in the oxygen content between arterial and venous blood
  18. 39. detect changes in blood pressure // if blood pressure is above set value it stimualtes the medulla to decrease heart rate
  19. 40. a decrease in resting heart rate to below 60bpm
  20. 41. type of circulation that brings deoxygenated blood from the heart to the lungs and oxygenated blood back to the heart
Down
  1. 1. VR - DF - CMS - FOC - EF
  2. 2. occurs after 10-20 mins of exercise where the body sweats more resulting in plasma in the blood being lost - decreased stroke volume - blood more viscous
  3. 3. graph that explains that when exercising the carbon dioxide and water produced combine and release H+ ions - bohr shift
  4. 5. the chest pain expereinced when the blood supply through the coronary arteries is restricted
  5. 6. the nervous system that speeds up heart rate by stimulating the SA node to increase the rate of contractions
  6. 7. stage at which all heart tissues are relaxed // all chambers are open
  7. 10. the capacity of the heart to generate its own impulses
  8. 11. detect muscle movement // located in muscles
  9. 12. the force exerted by the blood against the blood vessel wall // blood flow X resistance
  10. 15. store for oxygen that has a higher affinity for oxygen than haemoglobin
  11. 16. type of circulation that brings oxyeganted blood to the body from the heart and brings deoxygenated bloos from the body to the heart
  12. 17. lumen widens - increased blood flow
  13. 18. both ventricles contract and force blood to the body or lungs
  14. 20. the % of the blood pumped out by the left ventricle per beat
  15. 22. both atria contract and force blood into the ventricles
  16. 24. deoxygenated blood back to the right atrium
  17. 25. the process in which the muscular wall of the heart thickens leading to a larger ventiruclar cavity and a increased stroke volume
  18. 27. a mechanism that aids venous return as when the muscles contract they squeeze the vein
  19. 29. a hormone that stimulates the SA node
  20. 30. lumen narrows - decreased blood flow
  21. 34. oxygenated blood to the left atrium