The Thyroid And Adrenal Gland

23 Questions | Total Attempts: 112

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The Thyroid And Adrenal Gland - Quiz

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Questions and Answers
  • 1. 
    What is the main transporter of thyroid hormones?
  • 2. 
    Which of these has the highest affinity for intracellular and transport proteins?
    • A. 

      T3

    • B. 

      Thyroxine

  • 3. 
    Intracellular ________ converts T4 to T3
  • 4. 
    Thyroid hormones stimulate anabolism and catabolism simultaneously. This is a _______
  • 5. 
    Very high T3 levels promote net ________ of muscle and fat
    • A. 

      Anabolism

    • B. 

      Catabolism

  • 6. 
    Which one of the following is not an action of TSH on the follicular cells?
    • A. 

      Increase in NIS activity

    • B. 

      Increase in iodination

    • C. 

      Increase in conjugation

    • D. 

      Increase in proteolysis

    • E. 

      Increased secretion of thyroid hormones

    • F. 

      Decreased TRH release

    • G. 

      Hyperplasia of the thyroid gland

  • 7. 
    Which of the following are actions of T3 and T4 on the pituitary?
    • A. 

      Decrease in size of TSH-secreting cells

    • B. 

      Decrease in TSH production

    • C. 

      Increase in ACTH

    • D. 

      Decrease in TRH receptors

  • 8. 
    Which of these cause an increase in TSH release?
    • A. 

      T3/T4 feedback

    • B. 

      Sympathetic activity via the hypothalamus

    • C. 

      Cold via the hypothalamus

  • 9. 
    Adrenaline is produced by _________ cells of the adrenal medulla
  • 10. 
    Which of these adrenoceptors does noradrenaline stimulate?
    • A. 

      α-adrenoceptor

    • B. 

      β1-adrenoceptor

    • C. 

      β2-adrenoceptor

  • 11. 
    Which of these does ACTH stimulate the production of?
    • A. 

      Noradrenaline

    • B. 

      Adrenaline

    • C. 

      Dopamine

  • 12. 
    Cortisol increases medullary production of adrenaline by increasing activity of the enzyme ____
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