Physiology of taste and smell

Question 1

What kind of receptors are taste and smell receptors?

Answer 1

Chemoreceptors

Question 2

What is the life span of a taste receptor cell?

Answer 2

10 days

Question 3

What are the four types of papillae found in the tongue?

Answer 3

Filiform
Fungiform
Vallate
Folliate

Question 4

Which papillae have taste buds?

Answer 4

Fungiform
Vallate
Folliate

Question 5

What nerve gives special sensory supply to the anterior 2/3rds tongue?

Answer 5

Chorda tympani branch of the facial nerve

Question 6

What nerve gives general and special sensory supply to the posterior third of the tongue?

Answer 6

Glossopharyngeal

Question 7

What nerve gives general sensory supply to the anterior 2/3rd of the tongue?

Answer 7

Mandibular division of trigeminal (V3)

Question 8

What nerve supplies taste buds in areas other than the tongue?

Answer 8

Vagus

Question 9

What are the five primary tastes?

Answer 9

Salty
Sour
Sweet
Bitter
Unami

Question 10

What is the life span of olfactory receptors?

Answer 10

2 months