USAHS NEUROSCIENCE 3
COMPLETE QUESTIONS WITH
ANSWERS 2024 NEW
What are the two types of ganglion cells in the innermost layer? - CORRECT
ANSWER>>>>a. Parasol cells aka A cells, p-alpha
b. Midget cells aka B cells, p-beta
What ganglion cells respond to gross stimulus features and mvmt and where to they
project to? - CORRECT ANSWER>>>>a. Parasol cells
b. Project to magnocellular layer in LGN
What ganglion cells responds to very fine visual details and color? And what layer does
it project to? - CORRECT ANSWER>>>>Midget cells and parvocellular layers in
LGN
T/F the medial geniculate nucleus is associate w the visual pathway - CORRECT
ANSWER>>>>a. False
b. LGN is associated w visual pathway
Optic nerve receives input from what? - CORRECT ANSWER>>>>the ganglion cells
T/F the visual field of the right eye is carried by the right optic nerve? - CORRECT
ANSWER>>>>true
What is susceptible to compression by pituitary tumor? - CORRECT
ANSWER>>>>optic chiasm
T/F the optic chiasm receives visual input from the nasal side? - CORRECT
ANSWER>>>>a. False
b. It receives visual input from the temporal side
What are the nasal fibers responsible for? - CORRECT ANSWER>>>>the temporal
part of the visual field
Damage to the optic chiasm will cause what? - CORRECT ANSWER>>>>a.
Bitemporal hemianopsia
b. Aka tunnel vision
, The R optic tract is carrying info from R/L fibers which is R/L visual field. Does this apply
to one eye or both? - CORRECT ANSWER>>>>R fibers
L visual field
both eyes
If there was damage to the R tract, what will it cause? - CORRECT
ANSWER>>>>Contralateral homonymous hemianopsia of L visual field
Give me the pathway from the temporal visual field of the R eye to the optic tract: -
CORRECT ANSWER>>>>Temporal R visual field-
L nasal fibers-
R optic nerve -
optic chiasm -
L optic tract
Pathway from the nasal visual field of R eye to the optic tract - CORRECT
ANSWER>>>>a. Nasal L visual field - temporal R fibers - R optic nerve - R optic
tract
b. It doesn't cross!
The tracts are wrapped around what part of the brainstem? - CORRECT
ANSWER>>>>Midbrain
The LGN has how many layers? - CORRECT ANSWER>>>>6 ventral to dorsal
Layers 3-6 of LGN are made up by what layers? And they receive info by what ganglion
cells? - CORRECT ANSWER>>>>a. Parvocellular layers
b. Midget cells
Layers 1 and 2 of LGN are made up by what layers? That receive info by what ganglion
cells? - CORRECT ANSWER>>>>a. Magnocellular layers
b. Parasol cells
Vision from the R optic tract will synapse to the R/L LGN which is info from the R/L
visual field? - CORRECT ANSWER>>>>a. Synapse R LGN
b. Left visual field
What pathway is it when a minority of fibers in the optic tract bypass the LGN to enter
the superior colliculi and pretectal areas? - CORRECT ANSWER>>>>Extrageniculate
pathway
COMPLETE QUESTIONS WITH
ANSWERS 2024 NEW
What are the two types of ganglion cells in the innermost layer? - CORRECT
ANSWER>>>>a. Parasol cells aka A cells, p-alpha
b. Midget cells aka B cells, p-beta
What ganglion cells respond to gross stimulus features and mvmt and where to they
project to? - CORRECT ANSWER>>>>a. Parasol cells
b. Project to magnocellular layer in LGN
What ganglion cells responds to very fine visual details and color? And what layer does
it project to? - CORRECT ANSWER>>>>Midget cells and parvocellular layers in
LGN
T/F the medial geniculate nucleus is associate w the visual pathway - CORRECT
ANSWER>>>>a. False
b. LGN is associated w visual pathway
Optic nerve receives input from what? - CORRECT ANSWER>>>>the ganglion cells
T/F the visual field of the right eye is carried by the right optic nerve? - CORRECT
ANSWER>>>>true
What is susceptible to compression by pituitary tumor? - CORRECT
ANSWER>>>>optic chiasm
T/F the optic chiasm receives visual input from the nasal side? - CORRECT
ANSWER>>>>a. False
b. It receives visual input from the temporal side
What are the nasal fibers responsible for? - CORRECT ANSWER>>>>the temporal
part of the visual field
Damage to the optic chiasm will cause what? - CORRECT ANSWER>>>>a.
Bitemporal hemianopsia
b. Aka tunnel vision
, The R optic tract is carrying info from R/L fibers which is R/L visual field. Does this apply
to one eye or both? - CORRECT ANSWER>>>>R fibers
L visual field
both eyes
If there was damage to the R tract, what will it cause? - CORRECT
ANSWER>>>>Contralateral homonymous hemianopsia of L visual field
Give me the pathway from the temporal visual field of the R eye to the optic tract: -
CORRECT ANSWER>>>>Temporal R visual field-
L nasal fibers-
R optic nerve -
optic chiasm -
L optic tract
Pathway from the nasal visual field of R eye to the optic tract - CORRECT
ANSWER>>>>a. Nasal L visual field - temporal R fibers - R optic nerve - R optic
tract
b. It doesn't cross!
The tracts are wrapped around what part of the brainstem? - CORRECT
ANSWER>>>>Midbrain
The LGN has how many layers? - CORRECT ANSWER>>>>6 ventral to dorsal
Layers 3-6 of LGN are made up by what layers? And they receive info by what ganglion
cells? - CORRECT ANSWER>>>>a. Parvocellular layers
b. Midget cells
Layers 1 and 2 of LGN are made up by what layers? That receive info by what ganglion
cells? - CORRECT ANSWER>>>>a. Magnocellular layers
b. Parasol cells
Vision from the R optic tract will synapse to the R/L LGN which is info from the R/L
visual field? - CORRECT ANSWER>>>>a. Synapse R LGN
b. Left visual field
What pathway is it when a minority of fibers in the optic tract bypass the LGN to enter
the superior colliculi and pretectal areas? - CORRECT ANSWER>>>>Extrageniculate
pathway
