part_of adult male accessory gland adult male accessory gland epithelial wall TADS:0000511 TADS:0000511 The epithelial covering of the lobes of the male accessory gland is comprised of large cuboidal and tall columnar cells. In feeding or fed males, cells from the epithelial covering proliferate, become large cuboidal or tall columnar cells that fill with masses of simple and or simple and complex granules. default_namespace