protopathic sensibility is lost over an area which varies in different cases.
protopathic and epicritic sensibility are lost over the radial side of the forearm.
Deep sensibility is usually lost over an area almost as extensive as that of protopathic insensibility.
The areas of epicritic and of protopathic insensibility are illustrated in Fig. 91.
protopathic pro·to·path·ic (prō'tə-pāth'ĭk)
Sensing pain, pressure, heat, or cold in a nonspecific manner, usually without localizing the stimulus. Used especially of certain sensory nerves.