ANAT 2646 The Visual System

ANAT 2646 The Visual System - meyers loop Lateral...

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Retinal Cell Types Photoreceptors rods cones bipolar neurons ganglion cells - optic nerve horizontal cells - fine tuning amacrine cells - contrast enhancement; motion detectors
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Retinal Layers Outer nuclear Outer plexiform Inner nuclear Inner plexiform Ganglion cell
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Targets Lateral geniculate body Superior colliculus eye movement Pretectal areas pupillary light reflex Suprachiasmatic nucleus sleep/wake cycle
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Tracts Optic nerve, optic chiasm, optic tract optic radiation (geniculocalcarine tract)
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Unformatted text preview: meyers loop Lateral Geniculate Body The first two lamina are magnocellular and detect movement. The remaining four lamina are parvocellular and detects color and form Laminae 1,4,6 receive contralateral input Laminae 2,3,5 receive ipsilateral input Visual Cortex Input from LGN terminates in lamina 4 Alternating columns of ipsilateral or contralateral inputs Neurons in lamina 4 project to the other laminae...
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ANAT 2646 The Visual System - meyers loop Lateral...

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