photoreceptor


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photoreceptor

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

pho·to·re·cep·tor

(fō'tō-rē-sep'tŏr, -tōr),
A receptor that is sensitive to light, for example, a retinal rod or cone.
Synonym(s): photoceptor
[photo- + L. re-cipio, pp. -ceptus, to receive, fr. capio, to take]

photoreceptor

/pho·to·re·cep·tor/ (-re-sep´ter) a nerve end-organ or receptor sensitive to light.

photoreceptor

(fō′tō-rĭ-sĕp′tər)
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

Neurology A sensory nerve ending that responds to stimulation by light

pho·to·re·cep·tor

(fō'tō-rĕ-sep'tŏr)
A light-sensitive receptor (e.g., a retinal rod or cone).
[photo- + L. re-cipio, pp. -ceptus, to receive, fr. capio, to take]

photoreceptor

a structure or pigment sensitive to light. In animals such structures are called eyes; they contain sensitive pigments which, when stimulated by light, activate the nervous system. In plants photoreceptors tend to be pigments of various sorts. For example, PHYTOCHROMES sensitive to red light (see PHOTO PERIODISM and flavo-proteins sensitive to blue light trigger AUXIN production, leading to PHOTOTROPISM.

photoreceptor

neurological cell that is sensitive to light, e.g. skin melanocytes

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

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.
References in periodicals archive ?
Parts of these spiders' faces and legs reflect ultraviolet light, which their photoreceptors can detect.
The ciliary opsins of vertebrates can be introduced by the well studied function of rhodopsin found in the photoreceptors called rods.
Retinitis pigmentosa (RP) refers to a prevalent class of diseases that involve progressive photoreceptor degeneration.
Conclusions: The SGR/BC opsin promoter is capable of driving photoreceptor specific GFP expression in transgenic Xenopus tadpole photoreceptor cells.
Most neural blindness is caused by damage to and degeneration of the eye's rods and cones, the photoreceptor cells that begin the conversion of light into nerve impulses.
In Kyocera's own testing, this development makes it possible for a single A4 drum to print approximately one million sheets -- more than triple the life of Kyocera's conventional A4 a-Si photoreceptor drum, which was already the industry's most durable, with a lifespan estimated by Kyocera to be approximately 300,000 A4-sized sheets(*2).
Mice lacking rhodopsin, the light sensitive pigment of rod photoreceptors, were used as an animal model of the condition.
In these diseases, retinal cells, also known as photoreceptors, begin to die and with them the eye's ability to capture light and transmit this information to the brain.
The new system mimics the complex behavior of photoreceptor cells, creating a more natural message for the ganglion cells to interpret.
The extract inhibits UVA and UVB light induced photoisomerization of trans-urocanic acid (t-UCA), a common photoreceptor located in the stratum corneum, and also blocks its photodecomposition in the presence of oxidizing reagents such as H2O2, and titanium dioxide (TiO2).
Millions of light-sensitive photoreceptor cells can be found in the eye's retina, a thin layer of tissue at the back of the eye.
Research suggests that human embryonic stem cells could be coaxed to become photoreceptor precursors.