Week 12

Question 1

What part of the vision system analyzes color and motion?
A. Primary Visual Cortex
B. Secondary Visual Cortex
C. Tertiary Visual Cortex
D. Both A and B

Answer 1

B. Secondary Visual Cortex

Question 2

What part of the vision system analyzes shape, size, and texture of items?
A. Primary Visual Cortex
B. Secondary Visual Cortex
C. Tertiary Visual Cortex
D. Both A and B

Answer 2

A. Primary Visual Cortex

Question 3

Loss of information in both temporal visual fields is…
A. Homonymous Hemianopia
B. Bitemporal Hemianopia
C. Myopia
D. Blindsight

Answer 3

B. Bitemporal Hemianopia

Question 4

Loss of visual information from the same visual field, right or left, in both eyes is…
A. Homonymous Hemianopia
B. Bitemporal Hemianopia
C. Complete Lesionof the Retina
D. Incomplete Lesion of Tracts Posterior to Optic Chiasm

Answer 4

A. Homonymous Hemianopia

Question 5

When does total loss of vision in ipsilateral eye happen…
A. Homonymous Hemianopia
B. Bitemporal Hemianopia
C. Complete Lesionof the Retina
D. Incomplete Lesion of Tracts Posterior to Optic Chiasm

Answer 5

**C. Complete Lesion of the retina (or of the optic nerve) **

Question 6

What can cause a partial loss to contralateral visual field?
A. Homonymous Hemianopia
B. Bitemporal Hemianopia
C. Complete Lesionof the Retina
D. Incomplete Lesion of Tracts Posterior to Optic Chiasm

Answer 6

D. Incomplete Lesion of Tracts Posterior to Optic Chias

Question 7

Damage to the optical nerve results in __ blindness and loss of the __ pupullary light reflex.

Answer 7

Damage to the optical nerve results in ipsilateral blindness and loss of the direct pupullary light reflex.

Despite damage to the optic nerve, the pupil will still constrict when light is shined in the contralateral eye.

Question 8

Multiple sclerosis often affects which part of the eye?
A. Optic Chiasm
B. Visual Cortex
C. Optic Nerve
D. Posterior Optic Tract

Answer 8

C. Optic Nerve

Question 9

True/False
When someone is cortically blind they have no awareness of any visual information due to a lesion in the brain.

Answer 9

True

Question 10

The ability of a cortically blind individual to orient to, point to, or detect movements of visual objects is called?
A. Blindvision
B. Blindsight
C. Blindeye
D. None of the above

Answer 10

B. Blindsight

Research suggests that blindsight is contingent on intact function of the retina and pathways from the retina to the superior colliculus and lateral geniculate nucleus.

Question 11

The optic nerves intersect at this point.
A. Lateral Geniculate Body
B. Retina
C. Optic Chiasm
D. Visual Cortex

Answer 11

C. Optic Chiasm

Question 12

True/False
Vertigo and Lightheadedness are the same thing.

Answer 12

False

Question 13

A sudden imbalance of vestibular signals, secondary to a lesion of the vestibular apparatus, vestibular nerve, vestibular nuclei or vestibulocerebellum is…
A. Pathologic Vertigo
B. Dizziness
C. Lightheadedness
D. None of the Above

Answer 13

A. Pathologic Vertigo

Described as dizziness and spinning