BIOD 152 Test Questions with 100% Correct
Answers
What sense does not have specialized sense organs?
Smell
Touch
Equilibrium
A&C
touch
The outer fibrous layer of the eye includes the:
A. Sclera and cornea
B. Ciliary body and iris
C. Pupil and retina
D. Lens and vitreous fluid
A
What portion of the eye supplies blood supply to the other layers of the eye?
choroid
True or false: The more numerous type of photoreceptors are rods
True
A patient is found to have blindness of the right visual field of both eyes. What part of
the vision pathway was most likely damaged? Explain your response.
A. Left optic nerve
B. Right optic nerve
, C. Left LGN
D. Right LGN
C; All the sensory information from the right visual fields travels
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.
(PICTURE)
A. Left eye blindness
B. Right eye blindness
C. Bilateral left visual field blindness
D. Bilateral right visual field blindness.
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
True or False: The lateral fibers of the optic nerves cross at the optic chiasm.
False
The ________ is controlled by the trochlear nerve.
A. Superior rectus
B. Medial rectus
C. Lateral rectus
D. Superior oblique
D
Answers
What sense does not have specialized sense organs?
Smell
Touch
Equilibrium
A&C
touch
The outer fibrous layer of the eye includes the:
A. Sclera and cornea
B. Ciliary body and iris
C. Pupil and retina
D. Lens and vitreous fluid
A
What portion of the eye supplies blood supply to the other layers of the eye?
choroid
True or false: The more numerous type of photoreceptors are rods
True
A patient is found to have blindness of the right visual field of both eyes. What part of
the vision pathway was most likely damaged? Explain your response.
A. Left optic nerve
B. Right optic nerve
, C. Left LGN
D. Right LGN
C; All the sensory information from the right visual fields travels
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.
(PICTURE)
A. Left eye blindness
B. Right eye blindness
C. Bilateral left visual field blindness
D. Bilateral right visual field blindness.
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
True or False: The lateral fibers of the optic nerves cross at the optic chiasm.
False
The ________ is controlled by the trochlear nerve.
A. Superior rectus
B. Medial rectus
C. Lateral rectus
D. Superior oblique
D
