18 Questions
What is the function of the thyroid hormone calcitonin?
Regulation of the amount of calcium in the blood
What is the approximate weight of the thyroid gland?
10-20 gm
What regulates the secretion of thyroid hormones T3 and T4?
Thyroid-stimulating hormone (TSH)
What is the functional unit of the thyroid gland?
Thyroid follicle
Where does the thyroid gland develop at 3-4 weeks gestational age?
At the base of the tongue
What is the role of the thyroid hormone in regulating body metabolism?
Maintaining the rate of fat and carbohydrate use
What is the primary cause of endemic goiters?
Iodine deficiency
What is the common characteristic of multinodular goiter?
Multiple thyroid nodules
What is the primary effect of TSH receptors on the thyroid?
Increased thyroid hormone production
What is the primary characteristic of toxic goiter?
Increased thyroid hormone production
What is the primary risk factor for developing goiter?
Lack of dietary iodine
What is the primary type of thyroid cancer mentioned in the text?
Thyroid carcinoma
What occurs when there is interference with the TRH-TSH thyroid hormone axis?
Increased cellularity and hyperplasia of the thyroid gland
What is the function of TSH in the regulation of thyroid hormone production?
To stimulate thyroid hormone production
What is the result of a deficiency in thyroid hormone synthesis?
Increased TSH production
What is the role of iodine in thyroid hormone production?
To iodinate tyrosine
What is the term for an abnormal enlargement of the thyroid gland?
Goiter
What is the term for a normally functioning thyroid gland that is enlarged?
Euthyroid goiter
Test your knowledge of thyroid hormone deficiency, its causes, and thyroid nodules. Learn about inborn errors, iodine deficiency, and goitrogens. Discover how TSH receptors and thyroid cells impact thyroid function.
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