The basic unit of the thyroid gland is the follicle. The thyroid gland captures dietary iodine, synthesizes thyroid hormone from it, and stores thyroid hormone until it is needed. Colloid, the material in the center of the follicles, stores thyroid hormone in a large protein called thyroglobulin.
Greensburg is a town in and the parish seat of St. Helena Parish, Louisiana, United States. The population was 718 at the 2010 census. It is part of the Baton Rouge Metropolitan Statistical Area. Greensburg is one of the oldest towns in Louisiana.
Opened: Opened in 1997. The Greenwell Springs Road Regional Branch Library was the third facility to be constructed with funds for the property tax. The facility was designed to serve the residents of the central area of the parish. The Library features two large reading and reference areas - one for adults and one for children and young adults.