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RHSC 420 – FINAL Questions & 100% Correct Answers- Latest Test | Graded A+ | Passed $12.69   Add to cart

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RHSC 420 – FINAL Questions & 100% Correct Answers- Latest Test | Graded A+ | Passed

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  • RHSC 420

the image from our visual field and inverted and reversed on the retina. -:- TRUE What are the three layers of the eye? -:- retina, choroid, sclera What is the difference between the fovea and the macula? -:- Fovea: area of highest visual acuity with tightly packed cones Macula: circular a...

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  • September 6, 2024
  • 36
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • RHSC 420
  • RHSC 420
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2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!



RHSC 420 – FINAL Questions & 100% Correct
Answers- Latest Test | Graded A+ | Passed
T/F - the image from our visual field and inverted and reversed on the retina.


✓ -:- TRUE




What are the three layers of the eye?


✓ -:- retina, choroid, sclera




What is the difference between the fovea and the macula?


✓ -:- Fovea: area of highest visual acuity with tightly packed cones

Macula: circular area surrounding the fovea




What is the order of cells from when the light hits the eye to the pigment epithelium?


✓ -:- 1. ganglion cells - make up optic nerve

2. amarcrine cells


3. bipolar cells


4. horizontal cells


5. rods


6. cones


1|Page | Grade A+| 2024/2025

,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!




What makes up the inner and outer segment of rods?


What time of day are these best for?


What are rods better at than cones?


✓ -:- Inner: contains the cell nucleus and mitochondria

Outer: contains the discs that contain light-sensitive rhodopsin (absorbs green/blue light)


Dusk and nighttime


Better for movement




What makes up the inner and outer segments of cones?


What are cones better for than rods?


✓ -:- Inner: contains the cell nucleus and mitochondria

Outer: contains the discs that contain light-sensitive iodopsin (absorbs red, green and blue

light)


Better visual acuity




T/F - we have more cones than rods.


✓ -:- FALSE - we have more rods than cones




2|Page | Grade A+| 2024/2025

,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!

T/F - the fovea only contains cones.


✓ -:- TRUE




From the optic nerve to the back of the brain, what is the order of the visual pathway in the

brain? (5)


✓ -:- 1. optic nerve

2. optic chiasm


3. optic tract


4. lateral geniculate nucleus (in the thalamus)


5. optic radiation




Draw out the visual pathway.


✓ -:- -




Where is the primary visual cortex?


✓ -:- occipital lobe




Fill in the blanks:


The _________ visual field projects to the lower retina.


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, 2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!

The __________ visual field projects to the fovea.


The __________ visual field projects to the upper retina.


✓ -:- Upper

Middle


Lower




The fibres from the lower visual field project from the _______ through the _______ lobe to

the primary visual cortex.


✓ -:- lateral geniculate nucleus, through the parietal lobe




The fibres from the upper visual field project from the _____ through the ______ lobe to the

primary visual cortex.


✓ -:- LGN, temporal lobe




The fibres from the middle visual field project from the ______ through the ________ lobes

to the most posterior part of the primary visual cortex.


✓ -:- LGN, parietal and temporal lobes




After leaving the primary visual cortex, visual things need further processing. What is the

dorsal stream/parietal lobe responsible for?


4|Page | Grade A+| 2024/2025

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