1 D

Question 0

Where are fungiform papillae found and what do they respond to?

Answer 0

Found all over the tongue but concentrated at the tip; mainly respond to sweet and salty but also sour.

Question 1

What are the five types of taste?

Answer 1

Sweet- glucose
Sour- citric or hydrochloric acid 
Bitter- quinine hydrochloride
Salty- NaCl
Umami- glutamate (MSG)

Question 2

Where are foliate papillae found and what type of taste do they respond to?

Answer 2

Most abundant on middle edges of the tongue and respond to sour.

Question 3

What type of stimuli do the circumvallate papillae respond to and where are they found?

Answer 3

Largest and least numerous. Found at the back of the tongue in an inverted V and respond mostly to bitter stimuli.

Question 4

What cranial nerves innervate each type of taste bud?

Answer 4

Fungiform and some foliate are innervated by CN VII (anterior 2/3)
Circumvallate and some foliate are innervated by CN IX (posterior 1/3)

Question 5

What cranial nerve innervates the taste buds of the palate?

Answer 5

CN VII

Question 6

What cranial nerve innervates the taste buds of the epiglottis?

Answer 6

CN X