61) The bony labyrinth is located in which portion of the temporal bone?
A) mastoid
B) petrous
C) squamous
D) tympanic
62) The sclera of the eye develops from
A) the lens placode.
B) head mesenchyme.
C) the optic cup.
D) the optic stalk.
63) Nerve axons from the lateral portion of each retina
A) cross over to the opposite side of the retina.
B) pass posteriorly without crossing over at the chiasma.
C) branch at the chiasma, some branches crossing and some not crossing.
D) carry information from the lateral half of the visual field.
64) The transmission of sound vibrations through the external acoustic meatus occurs chiefly through
A) nerve fibers.
B) air.
C) fluid.
D) bone.
65) Which of the following controls the amount of light entering the eye?
A) ciliary muscle
B) dilator/sphincter pupillae muscles
C) levator palpebrae
D) medial rectus
66) Which of the following membranes is
not
part of the cochlea?
A) basilar
B) tectorial
C) tympanic
D) vestibular
67) The nerve carrying taste information from the anterior two-thirds of the tongue is the
A) hypoglossal.
B) glossopharyngeal.
C) olfactory.
D) facial.
68) The superior oblique muscle turns the eye both laterally and
A) medially.
B) superiorly.
C) inferiorly.
D) laterally.
69) Each of the following structures participates in bending of light entering the eye
except
the
A) cornea.
B) iris.
C) lens.
D) vitreous humor.
70) Abraham spoke so softly that Jason rolled a piece of paper into a funnel shape and put one end into his external auditory canal to signal Abraham to speak up. Abraham then shouted that a certain anatomical structure serves exactly the same function as Jason's paper funnel. That structure is the
A) round window.
B) pinna.
C) pharyngotympanic tube.
D) mastoid antrum.