51) The oval window of the ear is connected directly to which passageway?
A) pharyngotympanic tube
B) external auditory canal
C) scala vestibuli
D) scala tympani
52) The first "way station" (relay nucleus) in the visual pathway from the eye, after there has been partial crossover of the fibers in the optic chiasma, is the
A) superior colliculi.
B) lateral geniculate nucleus.
C) primary visual cortex.
D) temporal lobe.
53) An essential part of the maculae involved in static equilibrium is/are the
A) spiral organ (of Corti).
B) cupula.
C) scala media.
D) otoliths.
54) Nearsightedness is more properly called
A) myopia.
B) hyperopia.
C) presbyopia.
D) emmetropia.
55) The oil component found in tears is produced by the
A) lacrimal glands.
B) tarsal glands.
C) conjunctiva.
D) endocrine glands.
56) Which of the following lies closest to the anterior pole of the eye?
A) center of the lens
B) center of the cornea
C) tip of an eyelash
D) sclera
57) The muscle that opens the eye is the
A) superior rectus.
B) orbicularis oculi.
C) frontalis on forehead.
D) levator palpebrae superioris.
58) What structure is handled by an "eye bank"?
A) whole eyes for eye transplants
B) just the lens
C) just the cornea
D) just the retina
59) Which cranial nerve does
not
innervate the extrinsic eye muscles?
A) abducens
B) facial
C) oculomotor
D) trochlear
60) Scientists who are trying to find a way to make neurons divide to heal nerve injuries often study the body's few mitotic neurons. These neurons are the
A) photoreceptors.
B) olfactory stem cells.
C) basal cells in the taste buds.
D) auditory hair cells.