however , long-ranging projections were observed that were more extensive than predicted from the somatotopy of dorsal horn cells : these long-ranging projections may reflect the presence of normally ineffective synapses ( synapses that do not cause postsynaptic discharge during receptive-field mapping of dorsal horn cells , ) or a misconception of dorsal horn cell somatotopy in s2 and caudal segments , or the existence of a functionally separate cell group in ventral lamina iv and lamina v of these segments .
C0039062
synapses
C0007634
cell