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5 Written Questions

5 Matching Questions

  1. papillary muscles
  2. prevent bubble formation as blood flows rapidly and turbulently through the ventricles
  3. right ventricle
  4. myocardium
  5. atrial appendages
  1. a cone shaped projections of myocardium (trabeculae carnae) located in both ventricles
  2. b Contraction of the inter-ventricular septum facilitates ejection of blood from which heart chamber
  3. c what is the function of trabeculae carnae
  4. d which wall of the heart is the thickest
  5. e what is another name for atrial auricles

5 Multiple Choice Questions

  1. briefly describe the mechanism of semilunar valve closure
  2. what is the name of the tissue that fuses the heart valves together
  3. what are the regions supplied by the brachiocephalic trunk
  4. what is the region supplied by the left subclavian
  5. what is the function of pectinate muscles

5 True/False Questions

  1. mediastinumth coronary arteries are perfused during which phase of the cardiac cycle


  2. the tricuspid and mitral valves close when the blood pressure within the ventricles exceeds blood pressure within the atriabriefly describe the mechanism of av valve closure


  3. trabeculae carneathis is an electrical short cut that conducts myocardial action potentials rapidly fron the inter ventricular septum to the papilllary muscles on the lateral side of the right ventricle


  4. tricuspid and mitralwhen the ventricles contract which valves are closed


  5. causes an increased risk of blood clot formation which can pass into the lungs or into the brainbriefly explain the clinical significance of stagnant blood flow in the auricles


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