Domains and mechanosensory nerve fields in salamander skin

Abstract We have studied, in the salamander (Ambystoma tigrinum), an apparent hindrance to the sprouting of certain segmental nerves into adjacent skin supplied by neighbouring segmental nerves. The mechanosensory fields of the dorsal skin of the hindlimb were examined by recording the afferent impulses evoked by a fine bristle applied to the skin. Three segmental nerves normally supply the hindlimb, and together divide the dorsal skin into two …