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Questions and Answers
The visual pathway includes the retinoid axons to the occipital visual cortex.
The visual pathway includes the retinoid axons to the occipital visual cortex.
True (A)
90% of the fibers in the visual pathway synapse in the thalamic component (lateral geniculate bodies).
90% of the fibers in the visual pathway synapse in the thalamic component (lateral geniculate bodies).
True (A)
The field of vision is the visual area seen by both eyes at a given instant.
The field of vision is the visual area seen by both eyes at a given instant.
False (B)
The image falling on the right visual cortex corresponds to the right side of the visual field.
The image falling on the right visual cortex corresponds to the right side of the visual field.
The visual pathway includes the optic nerve, optic chiasm, and midbrain.
The visual pathway includes the optic nerve, optic chiasm, and midbrain.
True or false: The visual pathway includes the optic nerve, optic chiasm, and midbrain.
True or false: The visual pathway includes the optic nerve, optic chiasm, and midbrain.
True or false: 90% of the fibers in the visual pathway synapse in the thalamic component (lateral geniculate bodies).
True or false: 90% of the fibers in the visual pathway synapse in the thalamic component (lateral geniculate bodies).
True or false: The visual pathway includes the retinoid axons to the occipital visual cortex.
True or false: The visual pathway includes the retinoid axons to the occipital visual cortex.
True or false: The field of vision is the visual area seen by both eyes at a given instant.
True or false: The field of vision is the visual area seen by both eyes at a given instant.
True or false: The image falling on the right visual cortex corresponds to the right side of the visual field.
True or false: The image falling on the right visual cortex corresponds to the right side of the visual field.
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Study Notes
Visual Pathway
- The visual pathway includes retinoid axons from the eyes to the occipital visual cortex
- The optic nerve moves to the optic chiasm, where some decussation is noted
- 90% of fibers synapse in the thalamic component (lateral geniculate bodies)
- 10% of fibers synapse in the midbrain
- Axons from the LGB then project to the occipital lobe as the upper and lower fiber bundles
Field of Vision
- The field of vision is the visual area seen by an eye at a given instant
- It is the area of the external environment that can be seen by one eye (monocular)
- The area seen to the nasal side is called the nasal field of vision
- The area seen to the lateral side is called the temporal field of vision
- Information from the right side of the visual field has the image falling on the left visual cortex
- Information from the left side of the visual field has the image falling on the right visual cortex
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