Fig. 13. A tangential section through the external limiting membrane of human retina. Note continuous belts of intermediate junctions (arrowheads) between the photoreceptor inner segments (I) and Müller cell processes (M). Bar = 1.0 μm. (Hogan MJ, Alvarado JA, Weddell JE: Histology of the Human Eye. Philadelphia: WB Saunders, 1971.)