This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Cajal Retina. From Structure of the Mammalian Retina By Santiago Ramon Cajal Outline of the structure of the mammalian retina Rod and cone layer External limiting membrane Outer granular layer Outer plexiform layer Inner granular layer Inner plexiform layer Ganglion cell layer Optic nerve fibre layer Internal limiting membrane