Sem Of Rod & Cone Cell Of The Retina
by Prof. P. Mottadept. Of Anatomyuniversity \la Sapienza\", Rome"
Title
Sem Of Rod & Cone Cell Of The Retina
Artist
Prof. P. Mottadept. Of Anatomyuniversity \la Sapienza\", Rome"
Medium
Photograph - Photograph
Description
False-colour scanning electron micrograph (SEM) of rod and cone cells of the eye retina. Cone cells (blue) and more numerous rod cells (pink, purple) are specialized light-sensitive cells. They occur on the surface of the retina. They are responsible for detecting visible images, which are transmit- ted as nerve impulses to the optic nerve and the brain. There are about 130 million rod cells in the human retina; they detect light intensity and so are important for day and night vision. While the less numerous cone-like cone cells (about 6.5 million in the human retina) respond specifically to colour. Magnification x730 at 6x7cm size. Magnification x1120 at 4x5 inch size.
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May 7th, 2013
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