IGF-1 is made in response to growth hormone and is needed for growth hormone to have its effects on muscles and other tissues. Growth hormone, synthesized in the pituitary gland, travels to the liver, which then responds by producing IGF-1.
Spring City is a borough in Chester County, Pennsylvania, United States. The population was 3,323 at the 2010 census. Spring City is a member of the Spring-Ford Area School District. It is situated along the Schuylkill River, which divides Chester and Montgomery counties. Directly across the river is the borough of Royersford.
The Yost Spring supplied the town pump that was located at Main Street & Yost Avenue, just a short distance down the hill from the spring. The borough of Springville was officially founded in 1867. A few years later the name was permanently changed to Spring City, due to postal regulations. It seems that another town had already claimed the name Springville, so the change was made to avoid confusion.