4012 - the cardiovascular system

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Across
  1. 8. type of capillary - no pores - transportation of smaller molecules
  2. 10. innermost layer of the blood vessel wall - contains flat epithelial cells
  3. 13. middle portion of the blood vessel wall - contains smooth muscle cells
  4. 14. resistance that ventricles have to work against to open the aortic valve and push blood around the body
  5. 16. there diameter determines blood flow
  6. 17. innermost layer of the heart - made up of endothelial cells
  7. 18. ECG - complex that shows ventricular depolarisation
  8. 19. ventricles contract and push blood into aorta OR pulmonary artery
  9. 22. type of capillary - pores - transportation of larger molecules
  10. 24. ECG - wave that represents atrial depolarisation
  11. 25. layer between pericardium and endocardium - consists of myocytes (specialised muscle cells)
  12. 26. blood from capillaries to veins - lowest pressure
  13. 29. surgical connection between 2 structures
  14. 30. SA node - atrial systole - AV node - Bundle of his - Purknje fibres - ventricular systole
Down
  1. 1. vol. of blood returning back to the heart from the veins
  2. 2. inside space of a tubular vessel
  3. 3. relaxation of all heart chambers to allow filling to occur
  4. 4. outermost layer of blood vessel wall
  5. 5. type of artery - distributing - thickest media - high involvement in vasoconstriction
  6. 6. blood away from heart at a high pressure - thick muscular wall
  7. 7. atrias contract and push blood into ventricles
  8. 9. thinner and smaller lumen than arteries - blood from arteries to capillaries - blood under lower pressure than arteries
  9. 11. blood volume in the heart at the end of diastole
  10. 12. device that prevents the backflow of blood - only in veins
  11. 15. one cell thick - thinnest mem. - diffusion of gases
  12. 20. outermost layer of the heart - protective fluid filled sac that surrounds the heart - prevents over-expansion of the ventircles
  13. 21. ECG - segment that shows the time it takes for the ventricles to fill
  14. 23. ECG - wave that shows ventricular repolarisation
  15. 27. type of artery - conducting - large lumen - low resistance - high amount of elasticin - expand and recoil - low involvement in vascoconstriction
  16. 28. valves -- blood under low pressure - blood towards the heart