A patient suffering from hypothyroidism has developed a goiter. This occurred because ________
A) low levels of thyroid hormone stimulate the thyroid gland to increase in size
B) the mental sluggishness associated with hypothyroidism stimulates the thyroid gland to increase in size
C) the low activity level associated with hypothyroidism stimulates the thyroid land to increase in size
D) low levels of thyroid hormone removed inhibition from the anterior pituitary and hypothalamus, more TSH was produced and it stimulated the thyroid gland to increase in size
Answer: D
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