serosa[se-rÅâ²sÄ] 1. The outermost coat or serous layer of a visceral structure that lies in the body cavities of the abdomen or thorax; it consists of a surface layer of mesothelium reinforced by irregular fibroelastic connective tissue.
In an abdominal migraine, pain is felt in the abdomen rather than the head. Abdominal migraines are rare in adults, but about 4% of all children with migraines experience abdominal migraines. Children who experience abdominal migraines often go on to suffer migraine headaches later in life. Abdominal migraines can cause severe stomach pain, nausea, abdominal cramping, and vomiting. What causes abdominal migraines? No one knows what causes abdominal migraines. One theory is that abdominal migraines are caused by changes in two chemicals, histamine and serotonin. Both of these occur naturally in the body.
Food poisoning from viruses or bacteria can cause abdominal pain, along with diarrhea and vomiting. Many outbreaks of food poisoning have been seen in recent years in the U.S., including 20 people in 7 states who picked up Salmonella from contaminated beef in 2011.