Unit 4 Flashcards
The 5-layered neural structure that lines the back of each eyeball; the furthest layer from the pupil contains the visual receptors, and the closest contains the retinal ganglion cells
Retina
The bundles of retinal ganglion cell axons that leave each eyeball; the 2nd cranial nerves
Optic Nerves
The X-shaped midline structure on the inferior surface of the hypothalamus; the retinal ganglion cell axons originating in the medial hemiretinas decussate via this
Optic Chiasm
The tracts, left and right, that project from the optic chiasm to the LGN; they are composed of the axons of retinal ganglion cells
Optic Tracts
The thalamic nuclei that relay visual information from the optic tracts to the ipsilateral primary visual cortex via the optic radiations
Lateral Geniculate Nuclei (LGN)
The diffuse neural pathways from each LGN to the primary visual cortex of the same hemisphere
Optic Radiations
The areas of occipital cortex, one left and one right, that receive most of their input from the LGN of the thalamus; aka striate cortex
Primary Visual Cortex
The areas of cerebral cortex, one in each hemisphere, that surround primary visual cortex; the ( ) of each hemisphere contains several different functional areas of secondary visual cortex
Prestriate Cortex
The cortex of the inferior temporal lobes; the ( ) of each hemisphere contains several different functional areas of secondary visual cortex, each of which plays a role in the visual recognition of objects
Inferotemporal Cortex
The area of association cortex in the posterior parietal lobe of each hemisphere; it receives input from visual, auditory, and somatosensory systems and plays a role in the perception of location and motion.
Posterior parietal Cortex