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3-dimensional model of the adult VZ neurogenic niche illustrating B1 cells (blue), C cells (green), and A cells (red). B1 cells have a long basal process that terminates on blood vessels (orange) and an apical ending at the ventricle surface. Note the pinwheel organization (light and dark brown) composed of ependymal cells encircling B1 apical surfaces. E2 cells are peach.
