rods and cones


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rods and cones

Etymology: AS, rodd + Gk, konos
the light-sensitive cells of the retina. The rods, under the visual purple pigment epithelium, are mainly located around the periphery of the retina. The cones receive color stimuli.

rods and cones

The photoreceptor cells of the retina. They are between the pigment epithelium and the bipolar layer of neurons. The rods contain rhodopsin, which is stimulated by light; the cones contain one of three other photopigments, which are stimulated by various wavelengths of visible light (colors).
See: cone (2); night vision; rod
References in periodicals archive ?
The compound only works when the rods and cones of the retinal photopigment layer have already died, as this causes electrophysiological changes in to the ganglion cells.
Experiments on mice with functional, nonfunctional, or degenerated rods and cones showed that DENAQ only impacts ganglion cells if the rods and cones have already died.
Our sense of sight comes from light-sensitive photoreceptor cells called rods and cones.
When the team used a technique called electroretinography to measure the electrical activation of the rods and cones to light, there was no response, further demonstrating the lack of functioning photoreceptor cells in mice lacking AIPL1.
The probe aimed for a different set of cells in the retina, the ganglion cells, which, along with the nearby bipolar cells, ferry visual information from the rods and cones to the brain.
Where in the human body can rods and cones be found?
Photopigments are found in two places - rods and cones.
The tiger salamander's rods and cones are structurally and functionally different yet the photoreceptor protein in the green rod and the blue cone are identical.
The retina contains special parts called rods and cones.
a California based workflow consultancy today announced a major restructuring of SpiegeleIUs in-house prepress and production systems based on Rods and Cones digital workflow architect design.
In both diseases, the light sensitive cells in the retina - the rods and cones - die, leaving the eye without functional photoreceptors.
ON and OFF cells normally pass signals from rods and cones to the brain's visual center, so directly stimulating the cells should restore vision.