112DT Semester 1 questions

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  • Created by: Ellen
  • Created on: 23-03-14 12:04

1. In an ECG what is happening in the cardiac cycle and the Q wave?

  • The electrical signal spreads to the perkinje fibres
  • The electrical signal spreads to the bundle branches
  • The electrical signal enters the Bundle of His
  • The ventricle depolarises
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2. Pernicious Anaemia is caused by

  • Leakage of haemoglobin
  • Poor Vit B12 absorbsion
  • Blood loss from large wounds
  • Deficient haemoglobin synthesis

3. Sympathetic nerves supply

  • None of the above
  • Just the sino atrial node
  • The whole of the heart
  • Just the atrial ventricular node

4. Respiratory alkalosis

  • is the physiological state resulting from abnormally high plasma pH
  • develops when the respiratory system cannot eliminate all CO2
  • is the physiological state resulting from abnormally low pH
  • is caused by hypoventilation

5. Which of these are NOT a general function of electrolytes in the body?

  • Some act as cofactors for enzzyme activities
  • They maintain cell wall integrity
  • The carry electrical currents
  • They aid maintenance of acid base balance

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