Nikolas
Created page with "The thyroid gland consists of numerous follicles composed of thyroid follicular cells that surround secreted ''colloid'', a proteinaceous fluid containing large amounts of thyroglobulin, the protein precursor of thyroid hormones. The follicular cells produce thyroglobulin (a large protein) and secretes it into the colloid. The basolateral surface of the follicular cells faces the blood while the apical surface faces the colloid. Iodine (I) is an important part of the th..."