Inflammation of the Parietal Peritoneum 'the pain of pari- etal peritoneal inflammation is steady and aching in character and is located directl.y over the inflamed area, its exact reference being possible because it is transmitted by somatic nerves supplying he parietal peritoneum. The intensity of he pain is dependent on he type and amount of material to which he peritoneal surfaces are exposed in a given time period. For example, he sudden release of