This chart illustrates the thyroid gland, explains its role in the body, shows normal hormone production, and demonstrates how to check your thyroid. The chart ... » 

This chart illustrates the thyroid gland, explains its role in the body, shows normal hormone production, and demonstrates how to check your thyroid. The chart provides illustrations, descriptions, and symptoms of having an overactive thyroid, underactive thyroid, thyroid nodules, and cancer, and describes common diseases associated with these types of thyroid disorders. «