What is rod cell?

  • (noun): Visual receptor cell sensitive to dim light.
    Synonyms: rod, retinal rod

Rod Cell

Rod cells, or rods, are photoreceptor cells in the retina of the eye that can function in less intense light than can 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 than cone cells, rod cells are almost entirely responsible for night vision.

Read more about Rod Cell.

Some articles on rod cell:

Rod Cell - Response To Light - Desensitization
... When the rods are exposed to a high concentration of photons for a prolonged period, they become desensitized (adapted) to the environment ...

Famous quotes containing the words cell and/or rod:

    There’s not one part of his physical being that’s like that of human beings. From his warped brain down to the tiniest argumentative cell of his huge carcass, he’s unearthly.
    —Willis Cooper. Rowland V. Lee. Wolf von Frankenstein (Basil Rathbone)

    The tracks of moose, more or less recent, to speak literally, covered every square rod on the sides of the mountain; and these animals are probably more numerous there now than ever before, being driven into this wilderness, from all sides, by the settlements.
    Henry David Thoreau (1817–1862)