gustatory

Question 1

3 epithelial cells present

Answer 1

1. supportive/ sustentacular cells
2. gustatory receptor cells
3. Basal cells

Question 2

tips of gustatory receptor cells are covered with

Answer 2

microvilli

Question 3

The microvilli contain ____ and are devoid of

Answer 3

sites that bind tatants; axons

Question 4

stem cells found at the
periphery of the taste bud near the
connective tissue layer.

Answer 4

basal cells

Question 5

basal cells produce ______ which then develop into _____

Answer 5

supporting cells; gustatory receptor cells

Question 6

any stimulus that can be tasted

Answer 6

tastant

Question 7

tastants can be pereived by

Answer 7

small ion channels and g protein coupled receptors (GPCRs)

Question 8

small ion channels perceive

Answer 8

salty and sour tastes

Question 9

GPCRs perceive

Answer 9

sweet or bitter tastes

Question 10

bitter tastes signals

Answer 10

poisons

Question 11

sour taste detects

Answer 11

harmful acids

Question 12

sweetness and saltiness proves intake of survival

Answer 12

necessary Na and sugar

Question 13

intensity of osur taste is proportional to the

Answer 13

log of H ion conc

Question 14

sour tastes is caused by

Answer 14

acids

Question 15

mainly responsible for salty taste

Answer 15

cations of salts esp Na cations

Question 16

most of the substances that cause sweet taste are

Answer 16

organic chemicals

Question 17

2 classes of substances to cause bitter taste sensations

Answer 17

1. long chain organic substances that contain Nitrogen

2. alkaloids

Question 18

umami is the dominant taste of food containing

Answer 18

L-glutamate

Question 19

circular structures mound like structures surrounded by a trench

Answer 19

circumvallate

Question 20

the circumvallate form _________ on the posterior portion of the tongue

Answer 20

inverted V

Question 21

mushroom shaped found on the flat anterior surface of the tongue

Answer 21

fungiform papillae

Question 22

locations where the primary taste sensations are perceived

Answer 22

1. circumvallate
2. fungiform papillae M
3. foliate papillae M
4. tonsillar pillars (few)
5. epiglottis and proximal esophagous

Question 23

pointed,
threadlike, small structures and provide
most of the bumpy appearance of the tongue

Answer 23

filiform papillae

Question 24

CN- anterior 2/3 of tongue

Answer 24

CN VII Facial nerve

Question 25

Facial nerve exits the brainstem in the

Answer 25

cerebellopontine angle

Question 26

Facial nerve exits facial canal and skull via

Answer 26

stylomastoid foramen

Question 27

posterior 1/3 of tongue

Answer 27

CN IX glossopharyngeal

Question 28

CN IX mediates

Answer 28

taste, salivation and swallowing

Question 29

CN IX exits the skull via the

Answer 29

jugular foramen

Question 30

CN IX exits the skull via the jugular foramen togeter with

Answer 30

X and XI

Question 31

location of vagus nerve

Answer 31

epiglottis

Question 32

CN X mediates

Answer 32

phonation , swallowing, elevation of the palate and taste

Question 33

CN X exits the brainstem (medulla) from the

Answer 33

postolivary sulcus

Question 34

primarily responsible for taste perception

Answer 34

gustatory cortex

Question 35

the gustatory cortex is located at the

Answer 35

rostral and lateral regions of the nucleus tractus solitarii

Question 36

gustatory cortex consists of

Answer 36

1. anterior insula on the insular lobe

2. frontal operculum

Question 37

Taste impulses from the anterior two thirds of the
tongue pass first into the _______ then
through the ______ into the ________,
and finally into the _________ in the brain
stem.

Answer 37

lingual nerve
chorda tympani
facial nerve
tractus solitarius

Question 38

Taste sensations from the circumvallate papillae on
the back of the tongue and from other posterior
regions of the mouth and throat are transmitted
through the ________ into the
__________,

Answer 38

glossopharyngeal nerve

tractus solitarius

Question 39

Taste perception is ________
and is controlled by
chemosensory neurons in the GC.

Answer 39

concentration dependent

Question 40

Constant weak application of one stimulus

_______perception

Answer 40

strengthens

Question 41

The taste of one food affects the taste of

another. this is an example of

Answer 41

cross adaptation

Question 42

Sensation of odour perceived when
chewing and swallowing, as the odorant in
the mouth is forced upwards behind the
palate into the nose

Answer 42

retronasal olfaction

Question 43

Combination of true taste (from the taste

buds) and retronasal olfaction

Answer 43

flavour

Question 44

flavour is a combination of ________ and _______

Answer 44

true taste and retronasal olfaction