Velar Muscules Flashcards

1
Q

What forms the bulk of the body of the uvula but is separate from the uvula proper?

A

musculus uvulae

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2
Q

the contraction of what muscle moves the posterior pharyngeal wall anteriorly and the lateral pharyngeal walls medially?

A

superior pharyngeal constrictor

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3
Q

The levator veli palatini is essential in articulating _______ sounds

A

oral sounds

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4
Q

What are the purposes of the bulging velum when the musculus uvulae contracts?

A
  1. added stiffness to prevent velar distortion
  2. assure a good VP seal between the velum and the posterior pharyngeal wall
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5
Q

What is the purpose of all pharyngeal constrictor muscles?

A

narrow the diameter of the pharynx

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6
Q

Is the tensor veli palatini active during speech or swallowing or both?

A

swallowing

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7
Q

the tensor veli palatini muscle is or is not involved in the VP opening or closing?

A

NOT

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8
Q

What muscle forms the posterior faucial pilliar?

A

palatopharyngeous

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9
Q

is the levator veli palatini a VP closer or opener?

A

closer

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10
Q

What is the function of the palatoglossus?

A

depress the soft palate and elevates tongue
narrow the orpharyngeal isthmus when swallowing

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11
Q

What is the origin, course, and insertion for the levator veli palatini muscle?

A

origin: tympanic part of the temporal bone
course: down and forward
insertion: palatine aponeurosis (supports the soft palate muscles)

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12
Q

the levator veli palatini elevates and retracts the posterior portion of the _____

A

velum

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13
Q

contraction of the levator veli palatini helps to ______ (close/open) the VP

A

close

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14
Q

What muscle forms the anterior faucial pillar?

A

palatoglossus

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15
Q

what is the purpose of the hard plate?

A

separate the oral and nasal cavities

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16
Q

velopharyngeal mechanism is incapable of separating the oral and nasal cavities during swallowing and speech, is called what?

A

velopharyngeal incompetence

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17
Q

too little sound into the nasal cavity during speech is known as what?

A

hyponasality

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18
Q

the posterior 1/3 is the _____ plate

A

soft plate

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19
Q

what muscle helps pull the pharyngeal walls medially during VP closing?

A

palatopharyngeous muscle

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20
Q

at what age do normal tonsil cells degenerate or atrophy?

A

~16 years old

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21
Q

what allows for pressure equilibration between the atmosphere and the middle ear and fluid drainage when open?

A

eustachian tubes

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22
Q

What is the function of the tensor veli palatini?

A

-tenses the soft palate
-assists the levator veli palatini in elevating the palate
-occlude and prevent entry of food into the nasopharynx during swallowing

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23
Q

is the palatoglossus a VP closer or opener?

A

opener

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24
Q

velopharyngeal mechanism adequately closes the port during swallowing and speech, is called what?

A

velopharyngeal competence

25
What are the two depressors?
1. palatoglossus muscle 2. palatopharyngeal muscle
26
what is the origin and insertion of the tensor veli palatini?
origin: ptyergoid of the sphenoid insertion: palatal aponeurosis
27
when the oral and nasal cavities are separated, is this a closed or open VP?
closed
28
is the tensor veli palatini a VP closer or opener?
closer
29
for nasal breathing and production of nasal sounds, is the valve open or closed?
open
30
velar elevation is lowers for what type of sounds (oral or nasal)?
nasals
31
is the musculus uvulae a VP closer or opener?
closer
32
what are tonsils made out of?
lymphoid tissue
33
adenoid pads may assist in velar closure or opening?
closure
34
velar elevation ________ for high vowels than low
greater
35
The anterior 2/3 is the _____ plate
hard plate
36
The palatoglossus contracts to depress the _____ palate
soft
37
velar elevation ________ for high pressure consonants than lower pressure consonants and semivowels
higher
38
What muscle(s) is active during both swallowing and speech production?
levator veli palatini musculus uvulae
39
too much sound into the nasal cavity during speech is known as what?
hypernasality
40
What are the two purposes of the velum?
1. velopharyngeal port 2. control of VP is critical for resonance
41
the palatoglossus may be an ____________ muscle to the levator veli palatini
antagonist
42
is the palatopharygeous a VP closer or opener?
both
43
when the oral and nasal cavities are connected, is this a closed or open VP?
open
44
low vowels may be associated with some velar _____ (opening/closing)
opening
45
What forms the boundary between the oral cavity and the oropharynx?
faucial pillars
46
What is the origin of the palatopharyngeus (anterior and posterior)? As well as the course and insertion
origin: anterior fibers-hard palate, posterior fibers-soft palate midline course: laterally and down insertion: upper border o the posterior thyroid cartilage
47
what is the origin, course, and insertion of the palatoglossus muscle?
origin: palatal aponeurosis course: down insertion: each side of posterior tongue
48
What is the VP made up of (3 things)?
1. lateral pharyngeal walls 2. posterior pharyngeal wall 3. velum
49
is the musculus uvulae active during swallowing, speech, or both?
both
50
what is the function of the levator veli palatini?
primary elevator of the soft palate
51
When the tensor veli palatini contracts what opens?
the eustachian tubes
52
What happens when the musculus uvulae contracts?
a bulge on the posterior part of the nasal surface of the velum
53
for swallowing and production or oral sounds, is the valve open or closed?
closed
54
What are the three speech sounds the require the soft palate be lowered?
m,n,ng
55
is the superior pharyngeal constrictor a VP closer or opener?
closer
56
what is the tensor veli palatini muscle innervated by? What about the levator veli palatini?
tensor - CN V (trigeminal) levator - CN X (vagus)
57
The levator veli palatini is important for also preventing ______ from entering the nasopharynx during swallowing
food
58
What is the function of the palatopharyngeus?
lowers/depresses soft palate narrows orpharyngeal cavity by pulling lateral and posterior pharyngeal walls medially