mechano and thermo sensations Flashcards

1
Q

qualitatively diverse percepts of temperatuere as a result of the operation of complicated central neural mechanisms along the thermosensory pathway

A

thermosensation

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2
Q

importance of mechanosensation

A

a. fluent speech
b. food manipulation
c. periodontal forces

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3
Q

temperature of lips

A

34-35C

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4
Q

temperature of face

A

33-34

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5
Q

temperature of tongue

A

36-37c

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6
Q

MAXIMUM BITE force

A

50-70kg

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7
Q

maximum chewing force

A

7-15kg

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8
Q

slow adapting and respond to light touch

A

merkels disk

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9
Q

slow adapting and sensitive to stretch

A

ruffinis endings

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10
Q

meissners corpuscle is

A

rapidly adapting sensitive to low frequency vibrations and fine touch

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11
Q

sensitive to high frequency

A

pacinian corpuscles

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12
Q

cheek mucosa transfers temperature faster than the hard palate this is because

A

it is thinner and less keratinzied

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13
Q

factors affecting degree and rate of transfer of temp

A

a. thickness of epithelium (thicker the slower)
b. degree of keratinization (more keratinized more slow )
c.amount of saliva present (higher, faster)

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14
Q

c-fibers polymydal nociceptors temperature

A

40-45C

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15
Q

warm fibers

A

37C

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16
Q

cold fibers

A

30C

17
Q

high threshold cold fibers

A

0-15C

18
Q

SWEET:
SOUR SALTY:

A

WARM;COLD

19
Q

Underlies perception of form and roughness on skin

A

slowly adapting type 1

20
Q

conveys touch sensation

A

hair follicle receptors

21
Q

flutter or slip on lips

A

fast adapting type 1