Term
| Loss of peripheral vision indicates damage to what part of the visual pathway? |
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Definition
| Optic chiasm (place where optic nerves from the medial retina cross over- medial retina picks up info from lateral visual field) |
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Term
| What important anatomical structure is located just under the optic chiasm? |
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Definition
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Term
| Pupillary dilation reflex pathway? |
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Definition
| Brain receives sensory info that light is diminished --> descends through spinal cord to T1 --> passes out and ascends through sympathetic chain to superior cervical ganglion --> ascends via internal carotid artery |
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Term
| What is right homonymous hemianopsia? |
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Definition
| Right visual field defect in both eyes |
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Term
| Damage to optic tract posterior to optic chiasm will produce what sensory defect? |
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Definition
Loss of vision in contralateral visual field to location of defect in both eyes
(e.g. damage to L optic tract will produce right VF defect in both eyes) |
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