Central and Secondary Visual Systems

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Central and Secondary Visual Systems
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Central Visual System
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Slide 22a
Internal capsule, posterior limb
Optic tract
Green arrows denote direction of travel of the
optic tract
Hypothalamus
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Slide 21a
Optic tract
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Slide 20a
Lateral geniculate nucleus of thalamus
Optic tract (entering LG nucleus)
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Secondary Visual System
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Slide 20a
Medial geniculate nucleus of thalamus
Superior colliculi
Preganglionic parasympathetics of CNIII arise
here and project to the ciliary ganglion
Edinger-Westphal Nuclei
Oculomotor nuclei
Green arrow denotes the bypassing fibers of the
optic tract, within the brachium of the superior
colliculus to the superior colliculus