Fig. 1.7.03. Adherent junctions look like puncta adherentia on transversal section (arrows). On tangential section or in 3D reconstruction, however, they form anastomosing zonules. Encircled are close membrane appositions between plasma membranes of giant axon terminal (A) and dendrite (D). E - dendritic spine. Scale = 200 nm. (Rat, lateral geniculate nucleus.) Download the high resolution image.