- pigmented retinal epithelium
(= PRE; retinal pigmented epithelium, RPE)Layer of unusual phagocytic epithelial cells lying below the photoreceptors of the vertebrate eye. The dorsal surface of the PRE cell is closely apposed to the ends of the rods, and as discs are shed from the rod outer segment they are internalised and digested by the PRE. Do not have desmosomes or cytokeratins in some species.
Dictionary of molecular biology. 2004.
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retinal pigmented epithelial cell — See pigmented retinal epithelium and retina … Dictionary of molecular biology
Retinal pigment epithelium — Infobox Anatomy Name = Retinal pigment epithelium Latin = p. pigmentosa retinae GraySubject = 225 GrayPage = 1016 Caption = Section of retina. (Pigmented layer labeled at bottom right.) Caption2 = Plan of retinal neurons. (Pigmented layer labeled … Wikipedia
Retinal detachment — A separation of the retina from its connection at the back of the eye. The separation usually results from a tear (that is, a rent or rip, not a tear drop) in the retina. The tear often occurs when the vitreous gel pulls loose or separates from… … Medical dictionary
retinal detachment — detached retina separation of the inner nervous layer of the retina from the outer pigmented layer (retinal pigment epithelium) to which it is attached. It commonly occurs when one or more holes in the retina allow fluid from the vitreous cavity… … The new mediacal dictionary
retinal pigment layer — a single cell layer of pigmented epithelium covering the neural retina and developing from the outer of the two layers of the optic cup … Dictionary of ichthyology
retinal rod — Major photoreceptor cell of vertebrate retina (about 125 million in a human eye). Columnar cells (about 40 m m long, 1 m m diameter) having three distinct regions: a region adjacent to, and synapsed with, the neural layer of the retina contains… … Dictionary of molecular biology
Iris pigment epithelium — Anatomy The iris pigment epithelium (IPE) is a two cell thick layer of cuboidal cells lying behind the iris. Both layers are jet black due to the numerous large melanosomes which pack the cytoplasm of each cell. Towards the central axis, the IPE… … Wikipedia
Progressive retinal atrophy — (PRA) is a group of genetic diseases seen in certain breeds of dogs and, more rarely, cats. It is characterized by the bilateral degeneration of the retina, causing progressive vision loss culminating in blindness. The condition in nearly all… … Wikipedia
ciliary body — Tissue that includes the group of muscles that act on the eye lens to produce accommodation and the arterial circle of the iris. The inner ciliary epithelium is continuous with the pigmented retinal epithelium, the outer ciliary epithelium… … Dictionary of molecular biology
retina — Light sensitive layer of the eye. In vertebrates, looking from outside, there are four major cell layers: (i) the outer neural retina, which contains neurons (ganglion cells, amacrine cells, bipolar cells) as well as blood vessels; (ii) the… … Dictionary of molecular biology