1. Certain areas of a bodily organ which is supplied with sensory fibers from a single spinal nerve.
2. An autopsy instrument which permits the rapid removal of specimens from solid organs; such as, the liver: The medical specialist performed procedures which he used to remove sections of bodily organs; such as, the liver from the cadaver (dead body) for examination without having to perform a general postmortem or dissection to determine the cause of death.