If the thyroid were to develop abnormally and lack most of its extracellular folds, secretion of calcitonin would be severely below normal.

Question

Quizplus · Accepted Answer

Calcitonin is produced by the parafollicular cells (also called C cells) of the thyroid gland, which are located in the extracellular folds (or follicles). Therefore, if the thyroid lacks most of its extracellular folds, the production and secretion of calcitonin would be severely impaired.

If the Thyroid Were to Develop Abnormally and Lack Most