Nerve supply to the skin the kind of sensory inputs which project to a specific region of the primary somatosensory cortex. Groups of nerve terminals located in the different layers of the skin are categorized depending on whether the skin is hairy, nonhairy, or an exposed mucous membrane. The hairy parts of the body such as the forearm or the leg have two groups of nerve endings: those that end along with the hair follicles, and also with the arborizations of unmyelinated axons which are referred to as “free” nerve endings because they are served by both myelinated and unmyelinated axons. Nonhairy skin, such as
The Devil with the Three Golden Hairs the king returned, he dispatched the boy to travel into Hell and return with three of the Devil's golden hairs, in yet another effort to rid himself of his new son-in-law. The boy is confronted with three questions on his journey, as he travels between two towns and across the river. When passing through each, he is asked his trade ("what he knows"). The boy responds thrice, "I know everything." He is then asked why the first town's well, which once sprung forth wine, no longer dispenses even water. In the second town, he is asked why a tree that