Dendritic Spines and Development: Towards a Unifying Model of Spinogenesis—A Present Day Review of Cajal's Histological Slides and Drawings

Figure 9

(a) Represents a Purkinje cell in the phase of dendritic regularization, cerebellum, new-born dog. Cajal histological preparation, Golgi method. (b, c) Dendritic spines of apical branches. (d) dendritic spines of lateral perisomatic branches. (e, f) Purkinje cells with perisomatic branches with filopodia near the axonal origin. (g) Cajal scientific drawing [7, Figure 417]. Purkinje cell, several days old dog. (h) Three-dimensional reconstruction of the Purkinje cell showed in (a); filopodia are color coded in green.