Figure 1

Figure 1. Brightfield images of living rod and cone photoreceptors isolated from a salamander retina. Phototransduction takes place in the outer segment, while the ellipsoid is densely packed with mitochondria. Rods are responsible for dim light vision, cones for bright light vision. Courtesy of Yiannis Koutalos.

From: Phototransduction in Rods and Cones

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Webvision: The Organization of the Retina and Visual System [Internet].
Kolb H, Fernandez E, Nelson R, editors.
Salt Lake City (UT): University of Utah Health Sciences Center; 1995-.
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