Deck 26: Special Senses: Olfaction and Taste

Question 1

Which structures form a V- shape on the posterior portion of the tongue?

A)foliate papillae
B)fungiform papillae
C)vallate papillae

Answer 1

C

Question 2

Both olfactory receptor cells and taste receptor cells are .

A)surrounded by epithelial support cells
B)capable of detecting more than one special sensation
C)located within specialized structures called papillae
D)sensitive to chemicals in the air

Answer 2

A

Question 3

Tastes associated with caffeine, quinine, or aspirin are detected primarily by taste receptors.

A)sweet
B)bitter
C)umami
D)salty
E)sour

Answer 3

B

Question 4

Taste receptor cells are also called .

A)taste hairs
B)taste buds
C)papillae
D)gustatory cells

Question 5

The olfactory epithelium .

A)is found in the roof of the nasal cavity
B)lines the nasal cavity
C)lies superior to the cribriform plate
D)surrounds the olfactory bulb

Question 6

Adaptation of the olfactory epithelium _.

A)occurs readily in the presence of odorants
B)rarely occurs
C)is difficult to detect
D)occurs only when the surrounding air is cold

Question 7

Salty taste seems to be due to .

A)H+ ions
B)the amino acid glutamate
C)sugars and lead salts
D)Na⁺ ions

Question 8

The axons of olfactory receptor cells constitute .

A)CN IV
B)CN I
C)CN II
D)CN III

Question 9

Taste receptors are found primarily on the tongue, but may also be found .

A)in the esophagus
B)throughout the nasal passages
C)in the soft palate and pharynx
D)in the olfactory epithelium

Question 10

Taste receptor cells are found in structures called _.

A)taste buds
B)papilllae
C)epithelial layers
D)taste pores

Question 11

Airborne chemicals are most likely to stimulate .

A)olfactory receptors
B)olfactory receptors, taste receptors for umami, and taste receptors for bitter
C)taste receptors for umami
D)taste receptors for bitter

Question 12

Of all the factors that influence our sense of taste, this is the most important one.

A)temperature
B)texture
C)smell

Question 13

Acids primarily activate receptors that respond to tastes.

A)sour
B)umami
C)bitter
D)sweet
E)salty

Question 14

The portion of the bipolar olfactory receptor cell that actually detects odors is the _ _.

A)proximal axon
B)dendrite
C)olfactory cilium
D)axon terminal

Question 15

Nerve fibers from the olfactory bulb project directly to .

A)the hypothalamus
B)the basal nuclei (basal ganglia)
C)the olfactory cortex (uncus)
D)the thalamus

Question 16

Sugar crystals placed on a dry tongue _ .

A)do not activate any taste receptors
B)activate sweet receptors immediately
C)activate sweet and umami receptors immediately
D)activate receptors located only in the middle of the tongue

Question 17

Adaptation .

A)occurs only for the sense of smell
B)occurs when the stimulus is still present, but can no longer be detected
C)is a property of all sensory receptors
D)cannot occur for the chemical senses

Question 18

A substance cannot dissolve in water or the mucous that coats the olfactory epithelium. What is true about this substance?

A)We can detect it by taste but not smell.
B)We can detect it by smell but not taste.
C)We cannot detect it using the chemical senses.

Question 19

Olfactory receptor cells differ from all other receptors for special senses in that they .

A)have hairs
B)are of epithelial origin
C)detect chemicals
D)are neurons

Question 20

Because of anatomical differences in the olfactory system, the sense of smell may be more important to this animal than it is to humans.

A)sheep
B)predatory bird
C)fish

Question 21

It is easier to taste and identify a particular substance if .

A)the substance is cold
B)the substance has a distinct texture
C)the nose is plugged
D)the substance has a distinct texture, the nose is plugged, and the substance is cold

Question 22

The sensation of taste is carried on axons of the following cranial nerve(s): .

A)I
B)III, IV, and VI
C)VII, IX, and X
D)V