Best Answer: Hiccups are sudden, involuntary contractions of the diaphragm muscle. As the muscle contracts repeatedly, the opening between your vocal cords snaps shut to check the inflow of air and makes the hiccup sound. Irritation of the nerves that extend from the neck to the chest can cause hiccups.
Department Of Mines, M. & Virginia. Department Of Transportation. (1993) Campbell County, city of Lynchburg, Virginia: 1:50 000-scale topographic map. Reston, Va.: The Survey. [Map] Retrieved from the Library of Congress, https://www.loc.gov/item/94684540/.
Harrisonburg is an independent city in the Shenandoah Valley region of Virginia. As of the 2010 census, the population was 48,914. Harrisonburg is the county seat of Rockingham County, although the two are separate jurisdictions. The Bureau of Economic Analysis combines the city of Harrisonburg with Rockingham County for statistical purposes.