1. The Visual System Neuro Quiz Identify the correct question
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 Michael McKeough 2008
Click to Play!
 Michael McKeough 2008

2. Visual System Neuro Quiz
Receptors
Central
Pathway
Physiology
Misc.
Pathology
100
200
300
400
500
Visual System
Neuro Quiz
Categories:
Receptors
Central Pathway
Physiology
Miscellaneous
Pathology
Click category value to begin.

3. Receptors 100
This is the most anterior structure of the globe (eye ball).
It provides protection to the anterior chamber.
It becomes drier and less flexible with age.
Receptors for 100
This is the most anterior structure of the globe (eye ball).
It provides protection to the anterior chamber.
It becomes drier and less flexible with age.
What is the cornea?
What is the cornea?
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4. Receptors 200
This aperture reflexively regulates the level of illumination in the posterior chamber.
Under normal circumstances it is reactive to light.
Receptors for 200
This aperture reflexively regulates the level of illumination in the posterior chamber.
Under normal circumstances it is reactive to light.
What is the pupil?
What is the pupil?
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5. Receptors 300 These receptors are sensitive to black and white.
They are also sensitive to lines, edges and motion.
They are the most numerous receptors in the retina, particularly toward the periphery.
Receptors for 300
These receptors are sensitive to black and white.
They are also sensitive to lines, edges and motion.
They are the most numerous receptors in the retina, particularly toward the periphery.
What are rods?
What are rods?
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6. Receptors 400
This structure produces the “blind spot” in the visual field.
It covers the ganglion cells as they exit the globe.
Receptors for 400
This structure produces the “blind spot” in the visual field.
It covers the ganglion cells as they exit the globe.
What is the optic disk?
What is the optic disk?
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7. Receptors 500 This is the “preferred” region of the retina.
It contains a 1:1 relationship between cones and bipolar cells.
Receptors for 500
This is the “preferred” region of the retina.
It contains a 1:1 relationship between cones and bipolar cells.
What is the fovea centralis?
What is the fovea centralis?
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8. Central Pathway 100
These cells form the first-order neurons in the central visual pathway.
They innervate both rods and cones.
Central Pathway for 100
These cells form the first-order neurons in the central visual pathway.
They innervate both rods and cones.
What are bipolar cells?
What are bipolar cells?
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9. Central Pathway 200
This pathway projects from the optic chiasm to the thalamus.
It consists of fibers from the ipsilateral temporal hemiretina and contralateral nasal hemiretina.
Central Pathway for 200
This pathway projects from the optic chiasm to the thalamus.
It consists of fibers from the ipsilateral temporal hemiretina and contralateral nasal hemiretina.
What is the optic tract?
What is the optic tract?
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10. Central Pathway 300
This nucleus is the thalamic relay center for the central visual pathway.
It contains the cell bodies of third-order neurons.
Central Pathway for 300
This nucleus is the thalamic relay center for the central visual pathway.
It contains the cell bodies of third-order neurons.
What is the lateral geniculate nucleus?
What is the lateral geniculate nucleus?
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11. Central Pathway 400
These fibers consist of third-order neurons projecting from the thalamus to the primary visual cortex.
They arch around the lateral ventricle to reach their destination.
Central Pathway for 400
These fibers consist of third-order neurons projecting from the thalamus to the primary visual cortex.
They arch around the lateral ventricle to reach their destination.
What are the optic radiation fibers?
What are the optic radiation fibers?
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12. Central Pathway 500
This sulcus contains the primary visual cortex within the occipital lobe.
It is visible on a midsaggital section of the brain.
Area 17 of Brodmann is located on both its superior and inferior banks.
Central Pathway for 500
This sulcus contains the primary visual cortex within the occipital lobe.
It is visible on a midsaggital section of the brain.
Area 17 of Brodmann is located on both its superior and inferior banks.
What is the calcarine sulcus?
What is the calcarine sulcus?
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13. Physiology 100
This structure is located in the anterior chamber and gives the eye its color.
What is the iris?
Physiology for 100
This structure is located in the anterior chamber and gives the eye its color.
What is the iris?
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14. Physiology 200
These are the three color sensitivities on which color vision is based.
What are red, blue, and green?
Physiology for 200
These are the three color sensitivities on which color vision is based.
What are red, blue, and green?
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15. Physiology 300
The receptor potential in rods is due to the bleaching of this substance.
What is rhodopsin?
Physiology for 300
The receptor potential in rods is due to the bleaching of this substance.
What is rhodopsin?
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16. Physiology 400
This structure, in the human retina, absorbs light after it passes by the receptors.
What is the choroid?
Physiology for 400
This structure, in the human retina, absorbs light after it passes by the receptors.
What is the choroid?
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17. Physiology 500
The eyes deviate in this direction when the speaker is visually remembering images.
What is up and to the left?
Physiology for 500
The eyes deviate in this direction when the speaker is visually remembering images.
What is up and to the left?
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18. Miscellaneous 100
These extraocular muscles are named for the direction in which they move the eye.
There are 4 pairs of these muscles in each eye.
Miscellaneous for 100
These extraocular muscles are named for the direction in which they move the eye.
There are 4 pairs of these muscles in each eye.
What are the rectus muscles?
What are the rectus muscles?
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19. Miscellaneous 200
This type of eye movement is used to reposition the globe from one visual target to another.
These movements occur so quickly as to be imperceptible.
Miscellaneous for 200
This type of eye movement is used to reposition the globe from one visual target to another.
These movements occur so quickly as to be imperceptible.
What is saccadic movement?
What is saccadic movement?
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20. Miscellaneous 300 This clear fluid fills the posterior chamber.
What is vitreous humor?
Miscellaneous for 300
This clear fluid fills the posterior chamber.
What is vitreous humor?
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21. Miscellaneous 400
This portion of the retina receives images from the lateral portion of the visual field.
Fibers originating here cross the midline in the optic chiasm.
Miscellaneous for 400
This portion of the retina receives images from the lateral portion of the visual field.
Fibers originating here cross the midline in the optic chiasm.
What is the nasal hemiretina?
What is the nasal hemiretina?
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22. Miscellaneous 500
This portion of ambient light is what gives an object its color.
What is the frequency of light waves reflected by the visual target?
Miscellaneous for 500
Gives an object its color.
What is the frequency of light waves reflected by the visual target?
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23. Pathology 100 A lesion of this structure produces monocular blindness.
What is the optic nerve?
Pathology for 100
A lesion of this structure produces monocular blindness.
What is the optic nerve?
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24. Pathology 200
This clinical test is commonly used to examine the oculomotor system (extraocular muscles).
What are the cardinal planes of gaze?
Pathology for 200
This clinical test is commonly used to examine the oculomotor system (extraocular muscles).
What are the cardinal planes of gaze?
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25. Pathology 300
This type of abnormal, involuntary eye movement consists of slow and fast components.
It is associated with damage to the vestibular and cerebellar systems.
Pathology for 300
This type of abnormal, involuntary eye movement consists of slow and fast components.
It is associated with damage to the vestibular and cerebellar systems.
What is nystagmus?
What is nystagmus?
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26. Pathology 400
Age-related deficits in visual acuity (presbyopia) are caused by this impairment.
It is caused by a progressive loss of fluid.
It usually results in farsightedness (hyperopia).
Pathology for 400
Age-related deficits in visual acuity (presbyopia) are caused by this impairment.
It is caused by a progressive loss of fluid.
It usually results in farsightedness (hyperopia).
What is impaired lens accommodation?
What is impaired lens accommodation?
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27. Pathology 500
This is the most common visual impairment (field cut) associated with stroke.
It is caused by a lesion affecting the central visual pathway posterior to the optic chiasm.
Pathology for 500
This is the most common visual impairment (field cut) associated with stroke.
It is caused by a lesion affecting the central visual pathway posterior to the optic chiasm.
What is hemianopsia?
What is hemianopsia?
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