Taste and olfaction

Question 1

what is the average life span of taste receptor cells?

Answer 1

10-14 days

Question 2

what is the probable biological role of taste and olfaction?

Answer 2

edibility, diet selection, taste aversion

Question 3

the tip of the tongue is most sensitive to which taste modalities?

Answer 3

sweet, umami, salty

Question 4

the sides and back of the tongue are most sensitive to which taste modalities?

Answer 4

sour, bitter

Question 5

what nerve provides taste sensation to the anterior 2/3 of the tongue?

Answer 5

CN 7 via chorda tympani

Question 6

what nerve provides taste sensation to the posterior 1/3 of the tongue?

Answer 6

CN 9

Question 7

what nerve provides taste sensation to the soft palate?

Answer 7

CN 7 via greater superficial petrosal branch

Question 8

what is the olfactory receptor neuron?

Answer 8

bipolar nerve cell

Question 9

which area is involved in the perception and discrimination of odors?

Answer 9

orbitofrontal cortex