Last quiz Flashcards
1) What is the main function of the rods in the eye?
A) depth perception
B) color vision
C) vision in dim light
D) accommodation for near vision
C) vision in dim light
2) What structure regulates the amount of light passing to the visual receptors of the eye?
A) aqueous humor
B) lens
C) cornea
D) iris
iris
3) Receptors for hearing are located in the ________.
A) cochlea
B) semicircular canals
C) tympanic membrane
D) vestibule
A) cochlea
4) Presbyopia is not ________.
A) the loss of elasticity of the lens
B) the unequal curvature of refracting surfaces
C) common in individuals over 50
D) called ʺold personʹs visionʺ
) the unequal curvature of refracting surfaces
5) The oil component found in tears is produced by the ________.
A) lacrimal glands
B) ciliary gland
C) conjunctiva
D) tarsal glands
D) tarsal glands
6) The receptor for static equilibrium is the ________.
A) semicircular canals
B) macula
C) utricle
D) cochlear duct
macula
7) Farsightedness is more properly called ________.
A) myopia B) hypopia C) hyperopia D) presbyopia 8.
B) hypopia
) Inhibitory cells in the olfactory bulbs are called ________.
A) mitral cells
B) granule cells
C) sustentacular cells
D) basal cells
B) granule cells
9) Which of the following structures is not part of the external ear?
A) pinna
B) external auditory meatus
C) tympanic membrane
D) pharyngotympanic tube
D) pharyngotympanic tube
10) Nerve fibers from the medial aspect of each eye ________.
A) go to the superior colliculus only
B) pass posteriorly without crossing over at the chiasma
C) divide at the chiasma, with some crossing and some not crossing
D) cross over to the opposite side at the chiasma
D) cross over to the opposite side at the chiasm
11) Ordinarily, it is not possible to transplant tissues from one person to another, yet corneas can
be transplanted without tissue rejection. This is because the cornea ________.
A) is not a living tissue B) has no nerve supply C) has no blood supply D) does not contain connective tissue 12.
C) has no blood supply
12) The oval window is connected directly to which passageway?
A) scala vestibuli
B) external auditory meatus
C) pharyngotympanic tube
D) scala tympani
A) scala vestibuli
13) There are three layers of neurons in the retina. The axons of which of these neuron layers form
the optic nerves?
A) bipolar cells
B) ganglion cells
C) cone cells
D) rod cells
B) ganglion cells
14) The first ʺway stationʺ 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 body of the thalamus
C) visual cortex
D) temporal lobe
B) lateral geniculate body of the thalamus
15) As sound levels increase in the spiral organ (of Corti), ________.
A) outer hair cells stiffen the basilar membrane
B) outer hair cells bend the cilia away from the kinocilium
C) inner hair cells stiffen the basilar membrane
D) inner hair cells bend the cilia away from the kinocilium
A) outer hair cells stiffen the basilar membrane
16) Which of the following is true about gustatory receptors?
A) In order for a chemical to be sensed, it must be hydrophobic.
B) The receptors generate an action potential in response to chemical stimuli.
C) Complete adaptation occurs in about one to five minutes.
D) All gustatory receptors have the same threshold for activation.
C) Complete adaptation occurs in about one to five minute
17) Taste buds are not found ________.
A) in fungiform papillae
B) in filiform papillae
C) in circumvallate papillae
D) lining the buccal cavity
B) in filiform papillae