Concept information
Preferred term
Vision, Ocular
Type
-
mesh:Descriptor
Definition
- The process in which light signals are transformed by the PHOTORECEPTOR CELLS into electrical signals which can then be transmitted to the brain. The transducing of light energy to afferent nerve impulses in the retinal rods and cones. After light photons are absorbed by the visual photopigments, the signal is transmitted to the outer segment membrane by the cyclic GMP second messenger system, where it closes the sodium channels. This channel gating ultimately generates an action potential in the inner retina.
Broader concept
Narrower concepts
Entry terms
- Ocular Vision
- Vision
Allowable Qualifier(s)
In other languages
-
French
URI
http://data.loterre.fr/ark:/67375/JVR-S18K0PRK-1
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