taste smell part 1 Flashcards

1
Q
A
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2
Q

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

A

located in the epithelium not in pappilase

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3
Q

Taste receptor are clustered in taste buds,

A

which are mainly assoicated with fungiform and circumvallate/vallate papillae

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4
Q

tf Foliate papillae have tons of taste buds in adults.

A

Foliate papillae have few taste buds in adults.

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5
Q
A
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6
Q
A
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9
Q

epiglottis

A

SA from CN 10

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10
Q

posterior 1/3 tongue (including vallate papillae)

A

SA from CN-IX:

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11
Q

anterior 2/3 tongue, palate

A

SA from CN-VII:

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12
Q

anterior 2/3 tongue, hard and soft palate

somatic and visceral

A

GSA from CN 5

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13
Q

epiglottis

somaitc and visceral

A

GVA from CN 10

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14
Q

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

somatic and visceral

A

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

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15
Q

at apical end of taste receptor cell and

extend thru taste pore

A

microvilli

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16
Q

Taste receptor cells are replaced

A

every 7-10 days

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17
Q

the taste receptor cells release neurotransmitter on afferents

A

of CN VII, CN IX and CN X

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19
Q

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)

A

Taste molecule activates the taste receptor cell.

  1. Depolarizing receptor potential (inside of the taste receptor cell become more positive through several different mechanisms)
  2. Increase intracellular Ca+2 through voltage gated Ca+2 channels and via release from internal stores.
  3. Release of transmitter on to peripheral nerve (primary afferent)
  4. Transduction of the signal to the CNS (nucleus solitarius/solitaty nucleus)
20
Q

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)

A

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

21
Q

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

A

help depol taste receptor cell

by inc intracellular Ca+2

22
Q

The superior aspect of the nucleus solitarius is also referred to

A

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

23
Q

Central tegmental tract

A

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

24
Q

Transduction of the signal to the CNS

A

from taster receptor cell

25
Q

insula and the medial surface of the frontal operculum

A

gustatory cortex

26
Q

The taste (SA) pathway follows

A

ips. course

28
Q

near the base of the central sulcus.

A

gust cortex

29
Q

Opercula (singular, operculum):

A

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

30
Q

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

A

salivation and swallowing

31
Q

CN 1 SA

A

smell

32
Q

CN 1

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

A

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

33
Q

The olfactory epithelium is a —– columnar

A

The olfactory epithelium is a pseudostratified columnar

34
Q

what type of glands are in CN 1 olf ep.

A

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

35
Q

tf taste receptor cells are neurons

A

F

olf receptor cells are neurons tho