Rods and cones of the retina. False-colour scanning electron micrograph (SEM) of rod (blue) and cone (green-blue) cells of the eye retina. Rod cells and less numerous cone cells are specialized light-sensitive cells. They occur on the surface of the retina. They are responsible for detecting visible images,which are transmitted 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 unknown. Mag. approximately x2,000 at 35mm size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Omikron |
Bildgröße: | 5069 px × 3543 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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