Identify the structures that receive axons from the vestibular nucleus of medulla.
cerebellum
extrinsic eye muscles
semicircular canals
thalamus
(
Question 2) Select components of the neuronal pathway for balance.
facial nerve ganglion
thalamus
vestibular nucleus
vestibulocochlear nerve
(
Question 3) True or False: The membranous labyrinth is located within the bony labyrinth of the inner ear.
Indicate whether the statement is true or false.
(
Question 4) True or false: Binocular vision gives one depth perception which is the ability to distinguish between near and far objects.
Indicate whether the statement is true or false.
(
Question 5) Identify the type of hair cells of the spiral organ that are responsible for hearing.
A.
inner hair cells
B.
outer hair cells
C.
inner and outer hair cells
(
Question 6) Which of the following correctly differentiates endolymph and perilymph?
Endolymph has a high concentration of potassium and a low concentration of sodium compared to perilymph.
Endolymph has a low concentration of potassium and a high concentration of sodium compared to perilymph.
Endolymph is between the membranous labyrinth and the bony labyrinth and perilymph is within the membranous labyrinth.
Endolymph is within the membranous labyrinth and perilymph is between the membranous labyrinth and the bony labyrinth.
(
Question 7) What is the function of the inner hair cells?
A.
The inner hair cells detect chemicals in saliva; they are responsible for our ability to taste.
B.
The inner hair cells protect the external auditory canal.
C.
The inner hair cells are responsible for hearing.
D.
The inner hair cells regulate the tension of the basilar membrane.
(
Question 8) How does the avascular cornea acquire oxygen?
A.
Oxygen diffuses from the atmosphere to the cornea.
B.
Lysozyme in tears releases oxygen to nourish the cornea.
C.
The ciliary body provides oxygen to the cornea.
D.
Oxygen diffuses from the capillaries in the iris to the cornea.
(
Question 9) What is the near point of vision?
A.
The point at which a viewed image is not inverted on the retina.
B.
The region of the electromagnetic spectrum which can be detected by the rods and cones.
C.
The region of the macula in which the rods and cones are most concentrated.
D.
The closest point at which an object can be held and seen without appearing blurred.
(
Question 10) In normal near vision light is refracted _____ than in distant vision, thus the lens is _____.
A.
less; flattened
B.
more; flattened
C.
more; rounded
D.
less; rounded
Quick Reply
