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975336495
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Neurons Morphology
42 records
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assymmetric orientation (Figs.2B,3A,4,5), in contrast to spiny stellate cells
in layer 4 of the visual cortex that generally display a multipolar, almost
radially symmetric dendritic field (LeVay, 1973; Lund, 1984; Martin and
Whitteridge, 1984; 1988; but see Katz et al., 1989; Kossel et al., 1995).
Three to six thick primary dendrites emerged from the spherical to ovoid
somata that gave rise to several secondary, tertiary, and higher-order
dendrites. These dendrites formed an asymmetric dendritic field of various
size (Table 1) that was confined to a single barrel and always oriented
towards its center (Figs.2B, 3A,4). Higher-order dendrites were densely
covered with spines (Fig. 5). Spiny stellate cells that were synaptically
coupled to each other as described here resembled those designated as class I
spiny neurons in the barrel cortex by Woolsey and coworkers (Pasternak and
Woolsey, 1975; Simons and Woolsey, 1984)."p.5304.
