Chapter

Structure and Function of the Retina in Aquatic Tetrapods

Tom Reuter and Leo Peichl

in Sensory Evolution on the Threshold

Published by University of California Press

Published in print April 2008 | ISBN: 9780520252783
Published online March 2012 | e-ISBN: 9780520934122 | DOI: http://dx.doi.org/10.1525/california/9780520252783.003.0010
Structure and Function of the Retina in Aquatic Tetrapods

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This chapter discusses the anatomy and physiology of the retina in aquatic tetrapods. It focuses on the input and output stages of retinal processing: the photoreceptors and the ganglion cells. It describes the characteristics of rod and cone visual pigments, photoreceptor sensitivity, and the importance of temporal summation of photoreceptor signals. It also discusses ganglion cell densities and topographies, and examines how ganglion cells receive photoreceptor inputs and determine anatomical visual acuity.

Keywords: retina; aquatic tetrapods; photoreceptors; ganglion cells; visual pigments; photoreceptor sensitivity; temporal summation; visual acuity

Chapter.  12369 words.  Illustrated.

Subjects: Zoology and Animal Sciences

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