| 词汇 | photoreceptor |
| 释义 | photoreceptor noun[ C ] anatomy specializeduk /ˌfəʊ.təʊ.rɪˈsep.tər/ us /ˈfoʊ.t̬oʊ.rɪˌsep.tɚ/(alsophotoreceptor cell) any of the cells in the retina(= an area at the back of the eye) that change light into signals to the brain: The retina contains two kinds of photoreceptors: cones and rods. This damages the light-sensitive photoreceptor cells in the retina, causing severe vision loss. Bright sunlight bleaches the photoreceptors and lengthens the time it takes for your eyes to adjust to the dark. There are no photoreceptors at the head of the optic nerve, and hence this area forms the blind spot. Colour vision deficiency occurs because the photoreceptors at the back of the eye don't respond to colour as they should. The eye & surrounding area beadily beetling canthus chiasm chiasma compound eye eyeball eyelid glassy limbus macula macula lutea macular monobrow optic nerve suborbital superciliary supraoptic supraorbital tear duct You can also find related words, phrases, and synonyms in the topics: Eyesight, glasses & lenses Examples of photoreceptorphotoreceptor Of particular interest for this study are the photoreceptor and ganglion cells of the retina. Initially, retinas were whole-mounted with the photoreceptor layer uppermost. Early onset photoreceptor abnormalities induced by targeted disruption of the interphotoreceptor retinoid-binding protein gene. However, for the present study, we chose to implement the photoreceptor component of the noise explicitly. Photoreceptor-bipolar cell transmission in the per fused mudpuppy eyecup. A total of 104, 830 photoreceptors occupy the photoreceptor layer. There are some similarities between these findings and the underlying photoreceptor distributions. Three classes of cone photoreceptor provide the neural information required for color vision. As reviewed above, earlier work shows that photoreceptor synaptic ribbons are dynamic. No signal is seen in this section except autofluorescence from the photoreceptor oil droplets and outer segments. Retinal transplants restore visually evoked responses in rats with photoreceptor degeneration. We stress that the singularity index was calculated from existing databases of illuminants, photoreceptor fundamentals, and illuminants, without parameter adjustment of any kind. Our third goal was to assess the degree to which changes in the cone photoreceptor response might account for the changes seen in the b-wave. A vector addition model was used to describe the threshold data for different ratios of photoreceptor contrasts. Targeted effects of retinoic acid signaling upon photoreceptor development in zebrafish. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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