Technical Information

Additional Information

Footage ID#
4990882
Model Released
Property Released
Matte attached
Alpha channel
Seamless Looping
Duration
00:00:30
Frame Rate
25 FPS
Audio
none
Number of Views
24
Date Uploaded
10 May 2011
Date Created
1 Jun 2009

Description

Retina. Coloured scanning electron micrograph (SEM) of a section through a freeze-fractured retina, showing the light-sensitive rods and cones and their associated neurones. Light entering the eyes passes through the bipolar neurones in the nuclear layers (grey, lower frame). It then hits the rods and cones (pink yellow, upper frame). The rods, used in dim light, are found at the retinal margins. The cones, which control colour vision and acuity (sharpness), function best in bright light. They are concentrated in the centre of the retina. Information from both is passed to the neurons, which relay it to the optic nerve (not seen).

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