Question

The development of a goiter indicates that ________. a. the anterior pituitary is abnormally enlarged b. there is hypertrophy of the thyroid’s follicle cells c. there is an excessive accumulation of colloid in the thyroid follicles d. the anterior pituitary is secreting excessive growth hormone

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The tissue of the thyroid gland is composed mostly of thyroid follicles. The follicles are made up of a central cavity filled with a sticky fluid called colloid. Surrounded by a wall of epithelial follicle cells, the colloid is the center of thyroid hormone production, and that production is dependent on the hormones’ essential and unique component: iodine.
Goiter is an enlargement of the thyroid gland. It is caused by a goiter is more often due to the over- or underproduction of thyroid hormone. In goiter, the colloid accumulation is too much.

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