Just browsing through the a-mazing winners of the Olympus “Bioscapes” 2007 digital imaging competition and this third-place winner caught my eye. It’s a chicken retina photographed (using an “Epi-fluorescence Widefield” technique) by Andy Fischer from Columbus, Ohio.

I remember the act of memorizing the cellular parts of the retina in one of my college neuro courses, though of course can’t recall the actual memorized information. Doh. So I Googled it. Here’s the neatly labeled diagram that the legendary Santiago Ramon y Cajal came up with, around 1905. (Picture’s a bit blurry here, click here to see it more clearly.)

(Hat tip: Neurophilosopher)