Stratified squamous epithelium from the esophagus of the rat. Keratin filaments (tonofilaments, arrows) are sparse, and desmosomes are few (see inset), in the basal cell layer of this tissue. Figures...

Cell junctions formed between adjacent epidermal cells in Fundulus heteroclitus scales. Desmosomes line the membranes of two epidermal cells. A vast network of intermediate filaments and microfilament...

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...

Figures 81 (upper) and 82 (lower) from Chapter 3 (Junctional Specializations) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Septate junctions (upper, rectum; lower, testis) in the cockroach Periplane...

Glial cells in the nerve cord of the annelid worm, Aphrodita aculeata are rich in 10 nm filaments, and desmosomes are abundant. Figure 89 from Chapter 3 (Junctional Specializations) of 'The Cell, 2nd ...

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...

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...

These examples of ependymal epithelium from the rat brain represent epithelia that lack zonulae occludentes. Further, there appears to be no consistent order to the junctional specializations that are...

Epithelia of invertebrates contain zona continua and septate junctions not found in mammals. Left, zonula continua from gut epithelium of a flea; right, septate junction from the midgut epithelium of...