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Which type of lingual papillae do NOT contain
taste buds? What is their function?
a. circumvallate papillae; perception of
water molecules
b. umami papillae; perception of glutamate
c. filiform papillae; provide friction
d. fungiform papillae; appreciation of
texture
© 2012 Pearson Education, Inc.
What is unique about the sense of smell when
compared to other special senses?
a. Olfaction travels along only one large
cranial nerve.
b. Olfactory stimulation is the only type of
sensory information that reaches the
cerebral cortex directly.
c. Olfactory postganglionic nerve fibers run
through the cribriform plate of the
ethmoid bone.
d. Both B and C are correct.
© 2012 Pearson Education, Inc.
Which cranial nerve supplies taste buds
located in circumvallate papillae?
a. glossopharyngeal nerve
b. vagus nerve
c. trigeminal nerve
d. facial nerve
© 2012 Pearson Education, Inc.
Why does the smell of formaldehyde seem to
dissipate during the time you spend in the
dissection lab, yet you are able to detect the
cologne of someone who just entered the
lab?
a. Olfactory receptors are destroyed by
formaldehyde.
b. Olfactory receptors adapt to the smell of
formaldehyde.
c. Central adaptation has occurred, though
olfactory receptors retain sensitivity to
other smells.
d. None of the above is correct.
© 2012 Pearson Education, Inc.
Which of these correctly describes the pathway
taste sensations would take, starting at the tongue?
a. CNs VII, IX, and X  synapse in medulla 
synapse in thalamus  primary sensory cortex
b. Synapse in medulla  CNs VII, IX, X  medial
lemniscus  gustatory cortex  synapse in
thalamus
c. Tongue  CNs VII and IX  synapse in pons
 CN V synapse in thalamus  primary
sensory cortex
d. None of the above is correct.
© 2012 Pearson Education, Inc.
Visual information from the left half of the
combined field of vision arrives at the:
a. visual cortex of the right occipital lobe.
b. superior colliculus on the right side.
c. visual cortex of the left occipital lobe.
d. superior colliculus on the left side.
© 2012 Pearson Education, Inc.
In what circumstance does colorblindness
occur?
a. One or more classes of cones is
nonfunctional.
b. Cones are unable to manufacture visual
pigments.
c. Certain types of cones are absent.
d. All of the above are correct.
© 2012 Pearson Education, Inc.
Why are rods best suited for night vision?
a. Rods have a low threshold for activation.
b. Rods are primarily located within the
fovea.
c. Rods participate in converging pathways.
d. Rods contain several visual pigments.
© 2012 Pearson Education, Inc.
What processes take place for the lens of your eye
to become rounder to focus on nearby objects?
a. Ciliary muscles relax, and suspensory ligaments
pull at the circumference of the lens.
b. New fibers are added to the lens, increasing its
refractive power.
c. Ciliary muscles contract, which reduces tension
on the suspensory ligaments.
d. The distance between the lens and the macula
lutea changes, which keeps focal length
constant.
© 2012 Pearson Education, Inc.
Which of the following statements applies to a
detached retina?
a. There is a separation between the neural
part of the retina and the pigmented part.
b. To heal a detached retina, the detached
layers need to be reattached or vision is
lost.
c. It is possible to heal a detached retina but
frequently a person will experience
permanent blind spots.
d. All of the above are correct.
© 2012 Pearson Education, Inc.
What is the role of the auditory ossicles in
hearing?
a. They play a major role in equilibrium.
b. They act as levers that conduct vibrations
to the inner ear.
c. They vibrate against the round window
and distort the perilymph in the vestibular
duct.
d. They play no role in hearing.
© 2012 Pearson Education, Inc.
What is the function of the auditory tube?
a. It helps amplify sound waves.
b. It allows bacteria to travel from the
oropharynx to the middle ear.
c. It permits equalization of pressure on
either side of the tympanic membrane.
d. It secretes cerumen.
© 2012 Pearson Education, Inc.
You are attending an incredibly loud rock concert.
What is the reaction of your tensor tympani to the
noise?
a. It extends to allow free movement of the auditory
ossicles, thus preventing hearing loss.
b. It extends to prevent all movement of auditory
ossicles.
c. It contracts to reduce movement of the stapes.
d. It contracts to pull the malleus medially and
stiffens the tympanic membrane.
© 2012 Pearson Education, Inc.
Which structures comprise the major
subdivisions of the bony labyrinth?
a. anterior, posterior, and lateral semicircular
ducts
b. middle ear, inner ear, and membranous
labyrinth
c. vestibule, three semicircular canals, and
the cochlea
d. vestibule, saccule, and utricle
© 2012 Pearson Education, Inc.
Where are the sensory receptors that
respond to rotational movements of the
head?
a. in the utricle and saccule
b. in the anterior, posterior, and lateral
semicircular ducts
c. in the cochlear duct
d. in the vestibular duct and tympanic duct
© 2012 Pearson Education, Inc.
Which of the following is correct concerning
the function of the uvea (vascular layer)?
a. It stabilizes the shape of the eye and
produces collagen fibers.
b. It provides the route for the optic nerve
and blood vessels to the eye itself.
c. It regulates the amount of light entering the
eye.
d. It secretes and reabsorbs vitreous humor.
© 2012 Pearson Education, Inc.
Which of the following statements correctly
describes the location of rods and cones on
the retina?
a. Rods are located in the macula lutea, but
only cones are located in the fovea.
b. Cones are located at the periphery of the
retina, rods at the center.
c. Rods and cones are evenly distributed on
the retina.
d. Cones are located at the center of the
retina, rods at the periphery.
© 2012 Pearson Education, Inc.
When an object appears white, what event
has happened?
a. Photons of all colors have been absorbed
by the object.
b. Photons of all colors have bounced off the
object.
c. Rods have been stimulated.
d. B and C are correct.
© 2012 Pearson Education, Inc.
At which interface in the human eye is
refraction the greatest?
a. between air and the cornea
b. between aqueous humor and the lens
c. between the lens and the vitreous body
d. between the vitreous body and the retina
© 2012 Pearson Education, Inc.
Why can corneal transplant surgeries be
performed between unrelated individuals without
the risk of rejection?
a. White blood cells rush to the new cornea to
fight off infection.
b. There are no blood vessels in the cornea, so
white blood cells cannot attack the foreign
tissue.
c. Aqueous humor contains powerful
antibiotics.
d. None of the above is correct.
© 2012 Pearson Education, Inc.
The receptors for hearing are located in ____,
which is filled with ____.
a. the organ of Corti in the cochlear duct;
endolymph
b. hair cells in the vestibular duct; perilymph
c. the tectorial membrane in the tympanic
duct; perilymph
d. none of the above
© 2012 Pearson Education, Inc.
Which of the following describes the intensity
of a sound?
a. decibels
b. pitch
c. frequency
d. amplitude
© 2012 Pearson Education, Inc.
When aqueous humor cannot drain into the
scleral venous sinus, _______ results.
a. retinitis pigmentosa
b. age-related macular degeneration
c. glaucoma
d. loss of depth perception
© 2012 Pearson Education, Inc.
How does vitamin A deficiency affect vision?
a. Photoreceptors are destroyed causing
blindness within a few years.
b. The amount of visual pigment in
photoreceptors declines, causing poor
night vision.
c. The ability of the eyes to accommodate
for distance vision decreases.
d. Pupillary reflexes and reflexive eye
movement are lost.
© 2012 Pearson Education, Inc.
Low-frequency sounds vibrate the basilar
membrane __________ because _________.
a. near the round window; perilymph is
incompressible
b. near the oval window; of shorter wavelength
c. far from the oval window; of longer
wavelength
d. against the tectorial membrane; pressure
waves are created in endolymph of the
vestibular duct
© 2012 Pearson Education, Inc.
What is the survival value of being more
sensitive to sour and bitter tastes than to
sweet and salty ones?
a. Sour acids can damage mucous
membranes.
b. Many potent toxins have a bitter taste.
c. Sweet and salty tastes are pleasant, and
therefore good for you.
d. A and B are correct.
© 2012 Pearson Education, Inc.