Quiz 6

Question 1

What is the reason behind why semicircular canals detect accelerations but not constant velocity?

a. inertia causes semicircular fluid to be displaced more slowly during an acceleration, but it catches up during constant velocities
b. otoconia weigh down the hair cells during constant velocities, but not acceleration
c. hair cells are not coded to detect amplitudes
d. the kinocilia of the saccule point outward from the striola, allowing only acceleration ito displace them

Answer 1

inertia causes semicircular fluid to be displaced more slowly during an acceleration, but it catches ip during constant velocities

Question 2

Pavel is rolling faster and faster along his x-axis. Which organs are most contributing to his sense of angular rotation along that axis?

a. otolith organs
b. posterior and anterior semicircular canals
c. horizontal semicircular canals
d. saccules

Answer 2

posterior and anterior semicircular canals

Question 3

What evidence is there that the vestibular system is sensitive to sine wave-like information?

a. semicircular canals show steady release of neurotransmitters at rest
b. otolith organs show great responses to larger linear accelerations
c. the vestibular system is not sensitive to sine wave-like information
d. semicircular canals show preferential firing for 1Hz back and forth motions

Answer 3

semicircular canals show preferential firing for 1Hz back and forth motions

Question 4

____ fibers respond best to steady pressure, fine spatial details, and very low frequency vibrations of 5 Hz or less, and they terminate in Merkel cell neurite complexes.

a. FA II
b. FA I
c. SA I
d. SA II

Answer 4

SA I

Question 5

Which sensation would you become insensitive to if you lost all of your thermoTRP receptors?

a. the burn of chili peppers
b. the cooling sensation from mint
c. pain associated with touching an extreme temperature
d. all of the above

Answer 5

all of the above

Question 6

Whereas _____ cortex processes the intensity of touch sensations, _____ cortex processes their emotional and aversive effects.

a. S1; anterior cingulate
b. S2; S1
c. S1; S2
d. anterior cingulate; S1

Answer 6

S1; anterior cingulate

Question 7

Which of the following parts of the body have proprioceptive mechanoreceptors?

a. muscles
b. tendons
c. joints
d. all of the above

Answer 7

all of the above

Question 8

which structure(s) is/are sometimes called the “retina of the nose”?

a. olfactory epithelium
b. olfactory bulb
c. the turbinates
d. olfactory cleft

Answer 8

olfactory epithelium

Question 9

Which of these cell types is not located in the olfactory epithelium?

a. basal cells
b. mitral cells
c. OSNs
d. supporting cells

Answer 9

mitral cells

Question 10

Based on the lecture, what is the most correct statement about olfaction during sleep?

a. odors cannot be processed at all when we sleep
b. odors are processed similarly during sleep and wake
c. only odors tied to negative stimuli can be processed during sleep
d. odors can be processed during sleep, but are not consciously attended to or remembered

Answer 10

odors can be processed during sleep, but are not consciously attended to or remembered