Upper: a gap junction on the boundary between two hepatic cells shows a typical narrow and straight interface. Lower: in some preparations, gap junctions appear curved, and project into one of the ce...

This is a view of apical domains of two adjacent hepatocytes showing the junctional complexes that attach cells to one another. The canaliculus is defined by the cell membranes of two adjacent liver c...

This is a view of apical domains of two adjacent hepatocytes in the guinea pig liver, showing the junctional complexes that attach cells to one another. The bile canaliculus (BC) is defined by the cel...

Transmission electron micrograph of the junctional complexes at the intersection of three hepatocytes. This image was taken from liver tissues from an ethanol fed rat and also shows the bile canalic...

A freeze fracture replica of a Sertoli cell junction from rat testis shows more than 50 rows of particles along the E-face. Image from Gilula, Fawcett and Aoki, Dev. Biol. 50: 142-168 (1976), reprint...

Freeze-fracture images of continuous junctions along epithelial cells from the midgut of Rhodnius prolixus. Figures 78 (upper) and 79 (lower) by Nancy Lane, from Chapter 3 (Junctional Specializations...

Colorized scanning electron micrograph of keratinised squamous epithelial lining of the upper vagina. The boundaries between adjacent cells are visible as raised ridges. The cells closest to the surfa...

Freeze-fracture preparation of a continuous junction on the lateral surface of epithelial cells from the gut of a flea. Meandering ridges appear to be on the P-face of the replica. Figure 80, by Susu...

Replica of a freeze-fractured gap junction presents the inner half-membrane on one of the cells (P-face, lower half of the micrograph) and the the outer half-membrane of the other cells (E-face, upper...

Papillary muscle from cat heart shows a step-like end-to-end junction of two cardiac muscle cells. The longitudinally oriented lateral cell boundaries are straight and exhibit extensive gap junctions...