Taste smell Flashcards Preview

anatomy block 4 > Taste smell > Flashcards

Flashcards in Taste smell Deck (30):
1

Taste receptor cells are also located on the palate and epiglottis.

located in the epithelium not in pappilase

2

Taste receptor are clustered in taste buds,

which are mainly assoicated with fungiform and circumvallate/vallate papillae

3

tf Foliate papillae have tons of taste buds in adults.

Foliate papillae have few taste buds in adults.

4

5

6

epiglottis 

SA from CN 10

7

posterior 1/3 tongue (including vallate papillae)

SA from CN-IX:

8

anterior 2/3 tongue, palate

SA from CN-VII:

9

anterior 2/3 tongue, hard and soft palate 

GSA from CN 5

10

epiglottis

GVA from CN 10

11

tf GVA from CN-IX: ant 1/3 tongue, palatine tonsils,larynx

GVA from CN-IX: posterior 1/3 tongue, palatine tonsils, pharynx

12

Taste receptor cells are replaced 

every 7-10 days

 

13

the taste receptor cells release neurotransmitter on afferents

of CN VII, CN IX and CN X

14

at apical end of taste receptor cell and

extend thru taste pore

microvilli

15

Taste molecule activates the taste receptor cell.

 Increase intracellular Ca+2 through voltage gated Ca+2 channels and via release from internal stores.

Depolarizing receptor potential (inside of the taste receptor cell become more positive through several different mechanisms)

 Transduction of the signal to the CNS (nucleus solitarius/solitaty nucleus)

Release of transmitter on to peripheral nerve (primary afferent)

Taste molecule activates the taste receptor cell.

2. Depolarizing receptor potential (inside of the taste receptor cell become more positive through several different mechanisms)

3. Increase intracellular Ca+2 through voltage gated Ca+2 channels and via release from internal stores.

4. Release of transmitter on to peripheral nerve (primary afferent)

5. Transduction of the signal to the CNS (nucleus solitarius/solitaty nucleus)

16

tf 

when the Taste molecule activates the taste receptor cell. it hyperpolarizes polarizes receptor potential (inside of the taste receptor cell become more negative through several different mechanisms)

Taste molecule activates the taste receptor cell. 2. Depolarizing receptor potential (inside of the taste receptor cell become more positive through several different mechanisms)

17

voltage gated Ca+2 channels and via release from internal stores

help depol taste receptor cell

by inc intracellular Ca+2

18

The superior aspect of the nucleus solitarius is also referred to 

The superior aspect of the nucleus solitarius is also referred to as the gustatory nucleus

19

Transduction of the signal to the CNS

from taster receptor cell

20

insula and the medial surface of the frontal operculum

gustatory cortex

21

The taste (SA) pathway follows 

ips. course

22

Central tegmental tract

carries second order neurons of The taste (SA) pathway (ipsilateral)

23

near the base of the central sulcus.

gust cortex

24

Opercula (singular, operculum):

the regions of frontal, parietal and temporal lobes located adjacent to the lateral sulcus and overlying the insula

25

Taste information is also relayed from the solitary nucleus to retic. formation to regulate

 

 

salivation and swallowing

26

CN 1 SA

smell

27

CN 1

The only sensory system with no ----- relay to the thalamus, though olfactory information will eventually be -----through the thalamus.

The only sensory system with no precortical relay to the thalamus, though olfactory information will eventually be processed through the thalamus.

28

The olfactory epithelium is a ----- columnar

The olfactory epithelium is a pseudostratified columnar

29

what type of glands are in CN 1 olf ep.

Mucous producing glands are also present (Bowman’s glands)

30

tf taste receptor cells are neurons

olf receptor cells are neurons tho