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cell

Photoreceptor

also: Light-sensitive cell

A photoreceptor is a specialized light-sensitive CELL in the RETINA that detects light and converts it into signals used by the BRAIN to create vision.

Photoreceptors are specialized sensory CELLS located in the RETINA of the EYE. They detect visible light and convert it into electrical and chemical signals that are transmitted as NERVE IMPULSES to the BRAIN, where they are interpreted as visual information. The two main types of photoreceptors in humans are PHOTORECEPTOR ROD CELLS, which support vision in dim light, and PHOTORECEPTOR CONE CELLS, which provide color vision and detailed vision in bright light.

Photoreceptors are cells in the eye that sense light and help the brain create images.

• Specialized light-sensitive cells in the retina • Convert light into nerve signals • Essential for vision • Send information to the brain • Main types are rods and cones • Rods work best in dim light; cones detect colors

Source: mediLexicon corpus · slug photoreceptor