1) Human eye anatomy
Found on
https://www.crosswordclues.com/clue/rod-cell
Rod cells, or rods, are photoreceptor cells in the retina of the eye that can function in less intense light than the other type of visual photoreceptor, cone cells. Rods are concentrated at the outer edges of the retina and are used in peripheral vision. On average, there are approximately 125 million rod cells in the human retina. More sensitive...
Found on
http://en.wikipedia.org/wiki/Rod_cell
Comparison of a rod cell (left) and cone cell A type of light-sensitive nerve cell found in the vertebrate retina. Rods do not discriminate fine detail or color differences, but they are sensitive to very dim light, which cones are not. Whereas tens or hundreds of photons are needed to activate...
Found on
http://www.daviddarling.info/encyclopedia/R/rod_cell.html
Synonym for retinal rod ... <ophthalmology, physiology> Major photoreceptor cell of vertebrate retina (about 125 million in a human eye). ... Columnar cells (about 40m long, 1m diameter) having three distinct regions: a region adjacent to and synapsed with, the neural layer of the retina contains the nucleus and other cytoplasmic organelles, ...
Found on
http://www.encyclo.co.uk/local/20973
See retinal rod.
Found on
http://www.encyclo.co.uk/visitor-contributions.php
No exact match found.
