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a&p unit 3 > articulation lecture 16 > Flashcards

articulation lecture 16 Flashcards

1
Q

oral cavity

A
  • most significant
  • undergoes most change
  • shape changes based on tongue or mandible movement
  • extends from lips to faucial pillars at back of oral cavity
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2
Q

buccal cavity

A
  • lateral to oral cavity
  • space between posterior teeth and cheeks
  • plays role in oral resonance when mandible is depressed
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3
Q

positions of buccal cavity

A

laterally - cheeks
medially - teeth
posterior - third molar

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4
Q

pharyngeal cavity

A
  • tube 12 cm in length
  • behind nasal cavities to vocal folds
  • lined with muscle capable of constricting the space of tube for swallowing
  • important in closing veropharyngeal port (opening between oropharynx and nasopharynx)
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5
Q

oropharynx

A
  • immediately posterior to fauces
  • superior boundary - velum
  • inferior boundary - hyoid bone
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6
Q

laryngopharynx

A
  • superior boundary - hyoid bone
  • anterior boundary - epiglottis
  • inferior boundary - esophagus
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7
Q

nasopharynx

A
  • space above soft palate
  • anterior boundary nasal chonchae
  • lateral wall is orifice of eustacian tube
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8
Q

what is the most significant cavity that undergoes the most change?

A

oral cavity

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9
Q

what is the shape in the oral cavity altered by?

A

movement of tongue or mandible

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10
Q

the oral cavity extends from the lips to where?

A

the faucial pillars

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11
Q

what is the buccal cavity lateral to?

A

oral cavity

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12
Q

the buccal cavity plays role in oral resonance when what is happening?

A

the mandible is depressed

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13
Q

how long is the pharyngeal cavity?

A

12 cm

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14
Q

pharyngeal cavity is from where to where?

A

nasal cavities to vocal folds

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15
Q

the pharyngeal cavity is lined with muscle that does what?

A

constricts the space of the tube for swallowing

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16
Q

what cavity helps with closure of velopharyngeal port

A

pharyngeal cavity

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17
Q

what is the superior boundary of oropharynx

A

velum

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18
Q

what is the inferior boundary of oropharynx

A

hyoid bone

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19
Q

what is the superior boundary of laryngopharynx

A

hyoid bone

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20
Q

what is the anterior boundary of laryngopharynx

A

epiglottis

21
Q

what is the inferior boundary of laryngopharynx

A

esophagus

22
Q

what is the anterior boundary of nasopharynx

A

nasal chonchae

23
Q

what is the lateral wall of nasopharynx

A

orifice of eustacian tube

24
Q

what is the space above the soft palate?

A

nasopharynx

25
Q

what is immediately posterior to the fauces

A

oropharynx

26
Q

source filter theory of vowel production

A
  • voice is generated by the vocal folds and routed through the vocal tract where it is shaped into the sounds of speech
  • changes in shape of tongue, mandible, soft palate, & other articulators govern resonance characteristics of the vocal tract
  • resonances of tract determine sound of given vowel
27
Q

how do you change the shape of your oral cavity (smaller or larger, lengthening or shortening it)

A

move tongue around

28
Q

what happens when you change the shape of the oral cavity

A

resonant frequency changes; changes the sound that comes out of the mouth

29
Q

what is the source of vowels

A

phonation

30
Q

what is the source of consonants

A

turbulence of frication or combination of voicing and turbulence

31
Q

when volume decreases, what happens to frequency

A

it increases

32
Q

what is the source-filter theory

A
  • vocal folds produce a tone
  • the filter of that vocal tract changes that tone/frequency
  • changing shape of oral cavity changes resonant frequencies which changes sound that comes out of your mouth
33
Q

what is articulation

A

the process of joining two elements together

34
Q

what is the articulatory system

A

the system of mobile and immobile articulators brought into contact for the purpose of shaping the sounds of speech

35
Q

what are immobile articulators

A

alveolar ridge, hard palate, teeth

36
Q

what are mobile articulators

A

tongue, lower jaw, soft palate, cheeks, pharynx, larynx/hyoid bone

37
Q

what is the most important arcticulator

A

the tongue; super important for vowel production

38
Q

what does the lower lip achieve greater than the upper lip?

A

greater velocity and force and does most of work in lip closure

39
Q

what is lower lip attached to

A

mandible

40
Q

how are lips resistant to interference

A

they adjust and accommodate to physical restraints

41
Q

what is the lower lip capable of

A

rapidly altering its rate of closure

42
Q

what articulator is a helper that assists the lips

A

mandible

43
Q

the mandible changes position for what

A

tongue movement

44
Q

how is mandible important for mastication

A

the mandible elevates, grinds laterally and then depresses in a rhythmic fashion

45
Q

what does mandible do for speech

A

it elevates and depresses with slight modifications, quick adjustments

46
Q

tongue tip elevation

A

t, d

47
Q

tongue tip depression

A

k, g

48
Q

lateral margins relaxation of tongue

A

l

49
Q

velum

A
  • closed for non-nasal speech
  • open for nasal sounds
  • opens and closes in coordination w other articulators avoiding the effect of nasal resonance on other phonemes

a&p unit 3 (5 decks)

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