15 Questions
What is a single overactive nodule in the thyroid called?
Toxic autonomously functioning thyroid nodule
Which disorder can be either painful or not felt at all?
Thyroiditis
Where is T3 also produced, besides the thyroid?
Liver and kidney
What happens when the thyroid has too much iodine?
The thyroid makes more thyroid hormones than it needs
Which hormone is considered to be more of a pro-hormone?
T4
What influences basal metabolic processes and enhances oxygen consumption in nearly all body tissues?
$T4$
What is the primary function of TSH (thyroid stimulating hormone) in the endocrine system?
Activating the thyroid epithelial cell to release T3 and T4
What is the influence of negative feedback from thyroid hormone predominantly T3 on the secretion of TSH?
It blunts the synthesis and secretion of serum TSH
Which hormone competes with iodide in the organification process, inhibits thyroid hormone synthesis, and is a major component of smoke?
Thiocyanate
How does smoking affect hyperthyroidism?
Smoking worsens symptoms of hyperthyroidism
How does iodine deficiency affect hypothyroidism?
Iodine deficiency leads to increased excretion of iodine and inhibits thyroid hormone synthesis
What is the role of TRH (thyrotropin-releasing hormone) in regulating the secretion of TSH?
TRH stimulates the production of T3 and T4
How does elevated circulating thyroid hormone levels affect the synthesis and secretion of serum TSH?
They blunt the synthesis and secretion of serum TSH
What is the primary function of thiocyanate in relation to thyroid function?
It competes with iodide in the organification process and inhibits thyroid hormone synthesis
How does diet play a role in managing hypothyroidism?
Iodine-containing diet is recommended specially in iodine-deficient areas for hypothyroidism management
Test your knowledge about thyroid disorders and their causes with this quiz. Learn about nodules, thyroiditis, and the effects of excessive iodine on the thyroid gland.
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