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The retina comprises five distinct layers of neurons and synapses. A. A perpendicular section of the human retina seen through the light microscope.
Three layers of cell bodies are evident. The outer nuclear layer contains cell bodies of photoreceptors; the inner nuclear layer includes horizontal, bipolar,
and amacrine cells; and the ganglion cell layer contains ganglion cells and some displaced amacrine cells. Two layers of fibers and synapses separate
these: the outer plexiform layer and the inner plexiform layer. (Reproduced, with permission, from Boycott and Dowling 1969.)
B. Neurons in the retina of the macaque monkey based on Golgi staining. The cellular and synaptic layers are aligned with the image in part A. (M
ganglion, magnocellular
ganglionVisual
cell; PProcessing:
ganglion, parvocellular
(Reproduced,
from Polyak 1941.)
Source: Low-Level
The Retina, ganglion
Principlescell.)
of Neural
Science,with
Fifthpermission,
Editon
Citation: Kandel ER, Schwartz JH, Jessell TM, Siegelbaum SA, Hudspeth AJ, Mack S. Principles of Neural Science, Fifth Editon; 2012 Available
at: http://mhmedical.com/ Accessed: May 13, 2017
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