A blister is a bubble of fluid under the skin. The clear, watery liquid inside a blister is called serum. It leaks in from neighboring tissues as a reaction to injured skin. If the blister remains unopened, serum can provide natural protection for the skin beneath it. Small blisters are called vesicles. Those larger than half an inch are called bullae. A blood blister is filled with blood, rather than serum.
With 15,145 people, Cullman is the 41st most populated city in the state of Alabama out of 578 cities. But watch out, Cullman, because Alexander City with 14,849 people and Scottsboro with 14,748 people are right behind you.
Pell City is a city in St. Clair County, Alabama, United States. The city is the county seat of St. Clair County along with Ashville. At the 2000 census the population was 9,565. At the 2010 census, the city-limit population jumped to 12,695. Historical Marker telling the story of Pell City, AL.