Structure and Function of the Cephalopod Eye 1
Image 4: The Eye and Retinal Strucutre of a Vertebrate and Cephalopod (Image used by permission of May'ayan Semo- Imperial College London; from Semo, Ma'ayan. 1998. Evolution of the Eye: Morphology and Developmental Patterns. http://www.maayan.uk.com/evoeyes1.html. October 2, 2003. Image taken from: Halder, G., P. Callaerts, and W.J. Gehring. New Perspectives on Eye Evolution. Current Opinions In Genetics & Development. 1995; 5:602-60.
Light that enters into the eye, is focused on to the photoreceptors of the retina, which produces an action potential that is sent to the brain. These action potentials are organized by the brain into the image that is seen. (It is important to note, that images are not "seen' with eyes, rather eyes collect the electrical stimuli required for the brain to form images, and it is the brain that actually "sees" anything.)
Development of the Vertebrate and Cephalopod Eye The Cephalopod Eye 2 Cephalopod Statocysts
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