Fig. 2.

Dendritic morphologies of permanently deafferented mitral cells were compared with internal control cells. At the 3-week survival time, internal control cells (a) retained control morphology, with numerous major branches off the primary dendrite terminating in a dense tuft of fine processes. Scale bar = 20μm for all. Three-week deafferented cells (b) showed no obvious variation from control cells in overall gross structure of the dendritic arbor, although fine processes appeared to be less dense. At the 8-week time point, internal control cells (c) remained control-like in structure, while deafferented cells (d) exhibited reduced dendritic arbor morphology, with diminished major branches and an absence of the dense population of fine processes typically seen in control morphologies. arrowheads = major dendritic branches, * = fine processes