Fig. 29. Intermittent pericyte (P) coverage and lack of fenestrae in the endothelial cell wall characterize capillaries of the deeper stroma in the pars plicata. Basement membrane (BM) is multilayered. Fibroblast (FB) has active rough endoplasmic reticulum and a large cisterna with granular material. A small clump of elastic system microfibrils is seen at its upper edge (arrow). (X 20,900)