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photoreceptor

   Also found in: Dictionary/thesaurus, Legal, Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
photoreceptor /pho·to·re·cep·tor/ (-re-sep´ter) a nerve end-organ or receptor sensitive to light.
pho·to·re·cep·tor (ft-r-sptr)
n.
A nerve ending, cell, or group of cells specialized to sense or receive light.

photoreceptor
[-risep′tər]
Etymology: Gk, phos, light; L, recipere, to receive
a nerve cell that is receptive to light stimuli.

photoreceptor [fo″to-re-sep´tor]
a nerve end-organ or receptor sensitive to light.

photoreceptor
a nerve end organ or receptor sensitive to light. In the retina of the eye, the outer limbs of rods and cones make up the photoreceptor layer.

photoreceptor 
A receptor capable of reacting when stimulated by light, such as the rods and cones of the retina. See cone cell; rod cell.

photoreceptor
Neurology A sensory nerve ending that responds to stimulation by light


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The prefix 'photo-' in photoreceptors means light, and photoreceptors in animals' eyes receive light signals and then translate them into signals that their brain can understand, and that is how they see," he explained.
[1,2] Retinitis pigmentosa is the leading cause of inherited blindness, which is characterized by progressive loss of visual function related to death of rods then cones, and leads to the breakdown of the photoreceptor outer segment disc membranes.
The 45-million-year-old red bulging peepers of two flies stuck in Baltic amber (one shown, top) still had enough soft tissue to confirm predictions that their kind had already evolved a fancy, open array of photoreceptors, according to a paper published online in December in Proceedings of the Royal Society B.
 
 
 
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