Foveal regions of bird retinas correlate with the aster of the inner nuclear layer

Authors

  • Oscar Inzunza,

    Corresponding author
    1. Departamento de Anatomía, Esculea de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
    • Departamento de Anatomía, Escuela de Medicina, Pontificia Universidad Católica de Chile, Casilla 114-D, Santigo, Chile
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  • Hermes Bravo,

    1. Departamento de Anatomía, Esculea de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
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  • Ricardo L. Smith

    1. Departamento de Morfología, Escola Paulista de Medicina, Sao Paulo, Brasil
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Abstract

A radiate specialization, the aster, has been found in whole-mount retinas of birds and is associated to each one of the temporal and nasal fovea, with the one related to the convexiclivate nasal fovea more evident. This radial arrangement extends uniformly in all directions from the foveal pit. Transverse sections of the retina show that this structure is formed by bands of cells and bundles of fibers from the inner nuclear layer.

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