Hernia

A hernia is a protrusion of a tissue, structure, or part of an organ through the muscular tissue or the membrane by which it is normally contained (definition from MeSH). The hernia has 3 parts: the orifice through which it herniates, the hernial sac, and its contents. A hernia is often likened to the failure of a tire. Here a split in the sidewall of an excavator tire allows the inner tube to protrude. A hernia may be likened to a failure in the sidewall of a pneumatic tire. The tire ...