Question 1
2 / 2 pts
What senses contain specialized receptor cells via specialized somatic and
... [Show More] visceral
afferents?
Smell
Touch
Equilibrium
Correct!
A&C
Question 2
2 / 2 pts
The posterior portion of the outer fibrous layer of the eye is called the _____.
Your Answer:
Sclera
Sclera
Question 3
2 / 2 pts
What portion of the eye supplies blood supply to the other layers of the eye?
Your Answer:
Choroid (of the middle layer)
Question 4
2 / 2 pts
True or false: Cones operate best in dim light.
TrueCorrect!
False
Question 5
2 / 2 pts
What is the correct order of how light passes through the eye?
Cornea, Lens, pupil, retina
Correct!
Cornea, lens, vitreous fluid, retina
Vitreous fluid fills the space posterior to the lens
Lens, retina, cornea, optic nerve
Lens, vitreous fluid, optic nerve, retina
Question 6
3 / 5 pts
A patient had a CVA in the area indicated by the red x in the figure, below. What type of
blindness is the patient most likely to incur? Explain your reasoning.
A. Left eye blindness
B. Right eye blindness
C. Bilateral left visual field blindness
D. Bilateral right visual field blindness.Your Answer:
C
The right optic tract is damaged. All the sensory information from the left visual
fields travels together after the optic chiasm to the right side of the brain.
Question 7
5 / 5 pts
A patient has a brain tumor in the area indicated by the red x in the figure, below. What
type of blindness is the patient most likely to incur? Explain your reasoning.
A. Left eye blindness
B. Right eye blindness
C. Bilateral left visual field blindness
D. Bilateral right visual field blindness.Your Answer:
A
Left eye blindness because there is damage to the left optic nerve. Information
from the left visual field has not yet crossed at the optic chiasm. Both peripheral
and nasal fields of the left eye would be missing.
Question 8
0 / 3 pts
True or False: All sensory information from the optic nerves cross at the optic chiasm.
You Answered
True
Correct Answer
FalseQuestion 9
3 / 3 pts
The ________ is controlled by the abducens nerve.
Superior rectus
Medial rectus
Correct!
Lateral rectus
Superior oblique
Question 10
4 / 4 pts
Your elderly patient is discussing her vision problems. She describes her vision as
cloudy and dark. Her vision has progressively worsened over the last year. What most
likely is causing the vision problem? Explain your reasoning.
A. Cataracts
B. Cranial nerve damage
C. Brain tumor in the occipital lobe
D. Medial rectus damage
E. Lateral rectus damage... [Show Less]