NAME: ________________________

AP practice Exam Part I Test

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5 Written Questions

5 Matching Questions

  1. acidosis affect on hemoglobin O2 sat
  2. which have relatively more smooth muscle, small arteries or large arteries?
  3. isovolumetric relaxation
  4. EDV (End Diastolic Volume)
  5. hydrolysis
  1. a early in diastole, all heart valves are closed, ventricles are relaxing but pressure is still higher than atrial pressure so no blood is flowing into ventricles yet.
  2. b Small arteries are more muscular than large arteries
  3. c blood volume in the ventricle before a contraction (at the end of diasole/relaxation)
  4. d decrease in pH leads to decrease in hemoglobin O2 sat
  5. e breaking chemical bonds by adding water. Opposite of dehydration synthesis. catabolic

5 Multiple Choice Questions

  1. inspiriation is active
    expiration is passive
  2. platelet
  3. Potassium's effect on muscle cells causes contractions to become weak and irregular and eventually to stop.
  4. opposite of hydrolysis. anabolic reacition that joins two molecules by removing water.
  5. hepatocytes (liver cells)

5 True/False Questions

  1. isovolumetric contractionearly in ventricular systole, ventricles are contracting isometrically with all valves closed. Pressure is rising but no blood is flowing.


  2. enterogastric reflexThe enterogastric reflex specifically inhibits the intestinal phase by stimulating sympathetic activity and secretion of cholecystokinin which, in turn, decrease motility and delay emptying.


  3. does low blood pH increase or decrease RBC metabolic rates?acidity increases RBC metabolic rates


  4. The aortic valve opens during the ___ and closes at the end of the ___ ___axillary


  5. The radial and ulnar veins fuse to form this vein that runs most of the length of the armopens during QRS, closes at end of T wave


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