0 a layer of cells that are tightly pressed together which covers the outside and inside surfaces of the body -- nabłonek
Owing to their lower affinity for the epithelium, spermatozoa that become capacitated are released from the storage site.
The apical lamellae and basal invaginations are characteristic features of trematode excretory epithelium and are believed to be concerned with its absorptive capacity.
The cornea is frequently involved, with 353 in this series having multiple small dendritic or stellate lesions and 294 granular deposits under the corneal epithelium.
However, the retina shrank only by about 1% relative to the pigment epithelium, so this does not seem to be the case.
The main collecting tubes were connected to the excretory bladder epithelium by ring-shaped septate junctions (figs 10, 11).
Some cells with a morphology very similar to macrophages were found in the epithelium of seminiferous tubules of immunodeficient mice.
The colour intensity of the immunohistochemical reaction products is also much higher in tumour cells compared with normal epithelium.
Later these cells progressively flatten, expand and eventually fuse, forming a thin syncytium underlying the primitive epithelium (fig. 3b).
