The juxtaglomerular cells (JG cells, or granular cells) are cells in the kidney that synthesize, store, and secrete the enzyme renin.he juxtaglomerular cells (JG cells, or granular cells) are cells in the kidney that synthesize, store, and secrete the enzyme renin.
Throckmorton County, Texas. Throckmorton County is a county located in the U.S. state of Texas. As of the 2010 census, its population was 1,641. Its county seat is Throckmorton. The county was created in 1858 and later organized in 1879. It is named for William Throckmorton, an early Collin County settler.
CITY OF HILLSBORO. Historical Marker Text: In 1853, the Texas Legislature carved Hill County out of Navarro County. Named for physician and Republic of Texas Secretary of War Dr. George Washington Hill, the new county had only recently attracted Anglo settlement, following the establishment in 1848 of Fort Graham. County commissioners selected Hillsboro, originally spelled Hillsborough, as county seat.