PSL 310 Cardiac II

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Across
  1. 2. these fibers depolarize the right and left ventricles
  2. 4. this segment of the EKG represents an AV nodal delay
  3. 5. the P-wave represents the depolarization of the ______
  4. 9. a thin outer layer of epithelial cells in the heart
  5. 11. these types of cells are modified cardiac muscle fibers that have lost their contractile machinery; make up nodes
  6. 13. this segment of the EKG represents the ventricles contracting and emptying
  7. 14. cardiac ________ fibers do the mechanical work of generating blood pressure
  8. 15. decreasing end diastolic volume will ________ cardiac output
  9. 16. the T-wave represents ventricular _________.
  10. 17. if an unstable fibrous plaque breaks free from the coronary wall it can become a ________
  11. 20. cardiac muscle cells are joined end to end by __________
  12. 23. used to auscultate heart sounds
  13. 24. a condition in which an artery wall thickens as a result of the accumulation of fatty materials such as cholesterol and triglycerides.
  14. 25. this ion is responsible for the plateau phase of the cardiac action potential
  15. 26. originates at AV node and travels in region of heart near 4 corners of the chambers and into IV septum
  16. 27. this pathology is often depicted on an EKG that shows no association between the P wave and QRS complex
  17. 30. this type of heart beat arises when one location, other than the SA node, becomes abnormally excitable and initiates heartbeats before the SA node
  18. 31. thick middle layer of striated cardiac muscle cells, coronary blood vessels, and ANS fibers
  19. 32. these are the "spot weld" of adjacent plasma membranes, allowing for mechanical coupling
Down
  1. 1. number of valves closed during isovolumetric ventricular contraction
  2. 2. a decrease in permeability of this ion is responsible for the slow depolarization phase of autorhythmic cells
  3. 3. an increase in sympathetic stimulation would shift the frank-starling curve in this direction
  4. 6. a typical cardiac muscle action potential lasts ________ while a neuronal action potential lasts approximately 1-3msec.
  5. 7. an embolus in a coronary artery has the potential to cause this sudden and acute pathology.
  6. 8. an increase in heart rate can be achieved by the removal of this input
  7. 10. vessel ________ can result in fatty streak formation
  8. 12. these allow ions to be exchanged quickly between neighboring cells
  9. 18. During systole, the normal heart pumps all of the blood returned to it during diastole, describes what law of the heart?
  10. 19. heart wall layer that contains a thin layer of endothelial cells in direct contact with blood in heart chamber
  11. 21. first part of the cardiac conduction system, normally sets the heart rate
  12. 22. the QRS complex represents the depolarization of the ________
  13. 26. the term for an abnormally slow heart rate
  14. 27. stroke volume is equal to cardiac output divided by __________
  15. 28. this pressure is higher than left ventricular pressure during diastole
  16. 29. during the rapid downstroke phase of the pacemaker action potential, there is a rapid ________ in potassium permeability.
  17. 33. EDV-ESV=?