Blood pressure physiology - BM5 RCR1&2

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1. A genetic lack of glutathione-s-transferase could cause primary hypertension. What is the role of glutathione-s-transferase?

  • It oxidises vitamin C to form antioxidase, an enzyme that has antioxidant properties
  • It reduces glutathione to glucose in order to maintain blood glucose levels
  • It's a powerful reducing agent and is used to 'mop up' free radicals in the body
  • It transfers an amine group onto glucose to form glycogen for storage purposes
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Other questions in this quiz

2. What is blood pressure?

  • The pressure of blood in the aorta during systole and diastole
  • The pressure that the body exerts on the capilleries during a single cardiac cycle
  • The pressure that blood exerts on the heart during one beat
  • The pressure that is exerted by the heart on the body during a single cardiac cycle

3. True or false: Hypertension is primarily a disease of peripheral resistance?

  • True
  • False

4. Which of the following states the most important reason why arterial blood pressure is so tightly regulated?

  • ABP is the driving force of afterload
  • ABP is necessary to keep the heart pumping
  • ABP is the driving force of tissue perfusion
  • ABP is required to give the heart something to do

5. Which of the following most accurately describes C fibres?

  • Very abundant, small diameter, slow conducting (unmyelinated) & respond at high threshold
  • Not very abundant, small diameter, slow conducting (unmyelinated) & respond at high threshold
  • Very abundant, small diameter, slow conducting (unmyelinated) & respond at low threshold
  • Very abundant, small diameter, slow conducting (myelinated) & respond at high threshold

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