Neuroscience EXAM 3– USA (Latest 2023/ 2024 Update) Exam Prep with Questions and Verified Answers| 100% Correct| Grade A

Neuroscience EXAM 3– USA (Latest 2023/

2024 Update) Exam Prep with Questions and

Verified Answers| 100% Correct| Grade A

Q: this is the partial crossing of fibers where the optic nerves meet

Answer:

optic chiasm

Q: where do the nasal (medial) retinal fibers (responsible for temporal hemifields of vision)

crossover in the pathway?

Answer:

in the chiasm

Q: these are posterior to the chiasm and carry visual information from ipsilateral hemiretinas of

each eye

Answer:

optic tracts

Q: lesions to these areas result in monocular vision field deficits

Answer:

eye, retina, optic nerve

Q: lesions to this area results in bitemporal visual field deficits


Answer:

optic chiasm

Q: lesions to these areas posterior to the chiasm result in homonymous visual defects (defects in

the same region of the visual field for both eyes)

Answer:

optic tracts, LGN, optic radiations, visual cortex

Q: optic tracts wrap around the ____ laterally to reach the ____ of the thalamus

Answer:

midbrain; LGN

Q: axons of the ganglion cells traveling in optic tracts synapse on neurons in the ___, which

then project to the ____ ____ ____

Answer:

LGN; primary visual cortex

Q: a minority of fibers in the optic tract bypass the LGN to enter the superior colliculus and

pretectal areas of midbrain to form the ____ ___ ____

Answer:

extrageniculate visual pathways

Q: these areas are involved in the pupillary light reflex

Answer:

pretectal areas


Q: lesions of the ipsilateral optic radiations cause what?

Answer:

homonymous defects affecting the contralateral visual field

Q: ipsilateral optic radiations carry info from (contralateral or ipsilateral?) visual fields

Answer:

contralateral

Q: all fibers of optic radiations pass the these lobes

Answer:

parietal and temporal

Q: fibers of the inferior optic radiations arc slightly forward and down into the ____ lobe

forming what?

Answer:

temporal lobe; Meyer's loop

Q: inferior optic radiations carry information from the ___ retina (or the ___ visual field)

Answer:

inferior; superior


Q: lesions to the temporal lobe cause what deficits?

Answer:

contralateral homonymous superior quadrantanapia (pie in the sky) visual field defects

Q: fibers of the superior optic radiations pass just under the ____ lobe

Answer:

parietal lobe

Q: superior optic radiations carry information from the ___ retina (or the ___ visual field)

Answer:

superior; inferior

Q: lesions to the parietal lobe cause what deficits?

Answer:

contralateral homonymous inferior quadrantanopia (pie on the floor) visual field defect

Q: this area of the cortex lies on the upper and lower banks of the calcarine fissure in the

occipital lobe

Answer:

primary visual cortex (B17 - secondary and tertiary visual cortex are B18 and 19)

Q: where do the superior optic radiations project to? inferior optic radiations?


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jordancarter 7 months ago

This study guide is clear, well-organized, and covers all the essential topics. The explanations are concise, making complex concepts easier to understand. It could benefit from more practice questions, but overall, it's a great resource for efficient studying. Highly recommend!
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