Thyroid Hormone Regulation
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Questions and Answers

What effect does negative feedback have on the production of TRH by the hypothalamus?

  • Stimulates the production of TRH
  • Has no effect on the production of TRH
  • Halts the production of TRH
  • Slows the production of TRH (correct)

In what circumstances does T3/T4 production increase?

  • In a warm environment
  • When cellular energy demand increases (correct)
  • When cellular energy demand decreases
  • During exposure to heat

What effect does a cold environment have on TSH release by the anterior pituitary?

  • Has no effect on TSH release
  • Halts TSH release
  • Increases TSH release (correct)
  • Slows TSH release

What is the function of follicular cells in the thyroid gland?

<p>To produce and release thyroglobulin (TGB) (C)</p> Signup and view all the answers

What is the role of peroxidase in thyroid hormone synthesis?

<p>To oxidize iodide into iodine for thyroid hormone synthesis (A)</p> Signup and view all the answers

What causes an increase in T3/T4 production in the thyroid gland?

<p>Exposure to a cold environment (B)</p> Signup and view all the answers

What is the function of thyroglobulin (TGB) in thyroid hormone synthesis?

<p>It serves as a substrate for thyroid hormone synthesis (C)</p> Signup and view all the answers

What is the role of peroxidase in thyroid hormone synthesis?

<p>It oxidizes iodide into iodine for thyroid hormone synthesis (C)</p> Signup and view all the answers

What is the impact of negative feedback on the release of TSH from the anterior pituitary?

<p>It slows or stops the release of TSH (C)</p> Signup and view all the answers

What causes an increase in cellular energy demand, leading to an increase in T3/T4 production?

<p>Hypoglycemia (B)</p> Signup and view all the answers

What is the main function of follicles in the thyroid gland?

<p>To pull iodide ions from the blood stream (A)</p> Signup and view all the answers

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