FIGURE 4.

Ultrastructure of the DRG neurons in control mice. (a) An ensheathing layer made of SGC processes (arrowheads) separates two adjacent neurons. (b) The neuronal membranes of two adjacent neurons are in direct contact (arrows), without SGC interposition. (c) High magnification of (a). Note the presence of an SGC process between the sensory neuron somata (arrowheads) and gap‐junctions between neuron and SGC (red double arrowheads). (d) High magnification of (b). Note the lack of SGC interposition between the facing membranes of the two neurons (arrows). ct, connective tissue; N, nucleus; SGC, Satellite glial cell