Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
projections from the retina to the hypothalamus help serve what function?
|
regulation of circadian rhythms
|
|
|
projections of the retina to the pretectal area are involved in?
|
control of pupil size
|
|
|
projections from the retina to superior colliculus are involved in?
|
eye movements and orientation with the head and body to visual stimuli
|
|
|
what do projections to the lateral geniculate nucleus do?
|
transmit visual signals to the occipital visual centers
|
|
|
projections from the LGN that move very low ventrally before moving to the occipital cortex are called?
|
Meyer's Loop
|
|
|
what part of the optic pathway lies below the supratentorial compartment?
|
Trick! The are all in the supratentorial compartment
|
|
|
where do the optic radiations beginning in the lateral part of the lateral geniculate nucleus end up?
|
the lingual gyrus of the primary visual cortex
|
|
|
what part of the brain does the meyer's loop go through befor getting to the occipital lobe?
|
temporal lobe
|
|
|
what purpose do the diverse paths of the optic radiations serve?
|
if lesion damages some of them it is unlikely to damage all of them
|
|
|
optic radiations from the medial part of the lateral geniculate nucleus project where in the visual cortex?
|
the cuneus gyrus
|
|
|
axons originating from the lower quadrants of the retinal visual fields end of synapsing in what part of the LGN?
|
the lateral
|
|
|
axons found in the meyer's loop would contain signals from which quadrants of the visual field?
|
signals from the lower retinal quadrants... aka the upper quadrants of the visual field
|
|
|
trace the course of the input from the macula to the occipital lobe?
|
center of visual field and retinal field --> the middle of the LGN --> the pole of the occipital lobe
|
|
|
what is a common cause of heteronymous hemianopsia?
|
pituitary tumor pushing up on the optic chiasm
|
|
|
what causes homonymous hemianopsia?
|
lesion of the optic tract
|
