S3: Visual and Auditory System IDs Flashcards
what does a X in the structure cause?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/077/504/698/q_image_thumb.png?1659456389)
optic nerve
A lesion of the right optic nerve causes
- a total loss of vision in the right eye
- it also producesa right afferent pupil deficit.
what does damage here cause?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/077/504/808/q_image_thumb.png?1659456390)
optic chiasm
(note proximity to infundibulum and hypothalamus)
X - loss of vision in the temporal half of both visual fields:
bitemporal hemianopsia3
![](https://s3.amazonaws.com/brainscape-prod/system/cm/077/504/808/a_image_thumb.png?1659417928)
what does this wrap around?
what does damage here cause?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/077/504/878/q_image_thumb.png?1659456390)
optic tract
thalamus and the crus cerebri
A lesion of the right optic tract causes a complete loss of vision in the left hemifield:
contralateral “homonymous” hemianopsia.
![](https://s3.amazonaws.com/brainscape-prod/system/cm/077/504/878/a_image_thumb.png?1659417928)
![](https://s3.amazonaws.com/brainscape-prod/system/cm/077/505/046/q_image_thumb.png?1659456390)
calcarine sulcus
light yellow
![](https://s3.amazonaws.com/brainscape-prod/system/cm/077/505/443/q_image_thumb.png?1659456390)
primary visual cortex
Pink area
![](https://s3.amazonaws.com/brainscape-prod/system/cm/077/505/444/q_image_thumb.png?1659456391)
Primary Visual cortex (V1, area 17)
![](https://s3.amazonaws.com/brainscape-prod/system/cm/077/506/673/q_image_thumb.png?1659456391)
optic tract
![](https://s3.amazonaws.com/brainscape-prod/system/cm/077/513/223/q_image_thumb.png?1659456391)
visual radiation
![](https://s3.amazonaws.com/brainscape-prod/system/cm/077/515/906/q_image_thumb.png?1659456392)
prectum
![](https://s3.amazonaws.com/brainscape-prod/system/cm/077/516/124/q_image_thumb.png?1659456392)
superior colliculis
![](https://s3.amazonaws.com/brainscape-prod/system/cm/077/517/786/q_image_thumb.png?1659456392)
occulomotor
![](https://s3.amazonaws.com/brainscape-prod/system/cm/077/517/829/q_image_thumb.png?1659456392)
occulomotor nerve
![](https://s3.amazonaws.com/brainscape-prod/system/cm/077/521/542/q_image_thumb.png?1659456394)
lateral geniculate n.
input is from the?
what is it important for?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/077/521/894/q_image_thumb.png?1659456394)
Hescl’s gyrus - primary auditory cortex
input - MGN via the posterior internal capsule
important for distuinguishing sound patterns
21
input?
output?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/078/747/537/q_image_thumb.png?1659456910)
MGN
input - inferior colliculus
output - hescl’s gyrus
![](https://s3.amazonaws.com/brainscape-prod/system/cm/078/747/537/a_image_thumb.png?1659418300)