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Voice Disorders > Week 4 > Flashcards

Week 4 Flashcards

1
Q

What is the primary function of the larynx?

A

Protect the airway

  • blocks foreign objects
  • expells aspirated material, back flow, and extra mucus
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2
Q

What is the secondary function of the larynx?

A

Produce voice

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3
Q

Where is the larynx suspended from?

A

The hyoid

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4
Q

What does the larynx support?

A

tongue root

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5
Q

What is the function of suprahyoid muscles?

A

elevate the larynx

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6
Q

What is the function of infrahyoid muscles?

A

lower the larynx

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7
Q

Which muscles adduct the VFs?

A

thyroarytnoid muscle
lateral cricoarytnoid muscle
interarytenoid muscle

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8
Q

Which muscles abduct the VFs?

A

posterior cricoarytenoid muscle

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9
Q

Which muscles shorten and slacken the VFs?

A

thyroarytenoid muscle

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10
Q

Which muscles lengthen and stiffen the VFs?

A

cricothyroid muscle

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11
Q

Which muscles are innervated by the recurrent laryngeal branch of the vagus nerve?

A

thyroarytenoid
lateral cricoarytenoid
interarytenoid
posterior cricoarytenoid

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12
Q

Which muscles are innervated by the superior laryngeal branch of the vagus nerve?

A

cricothyroid muscle

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13
Q

What is pressed phonation?

A

Full adduction of VF
Holding breath momentarily bf speaking
phonotrauma

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14
Q

What is flow phonation?

A

phonation neutral
full resonant phonation
synchronized

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15
Q

What is breathy phonation?

A

gap between VF/glottis does not close
delayed onset of phonation
wastage of air

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16
Q

What is manner of phonation determined by?

A

sub glottal air pressure
trans glottal pressure drop
glottal resistance

17
Q

What is the phonation equation?

A

sub glottal - trans glottal pressure drop = supra glottal pressure

18
Q

What is phonation neutral position?

A

~ 3 mm b/t the VFs

19
Q

What is the cover of the VF?

A

outermost layer
flexible
medial edge of vocal fold

20
Q

What is the transition layer of the VF?

A

stiffer layer

21
Q

What is the body of the VF?

A

stiffest layer

thyroarytenoid muscle

22
Q

What is pitch?

A

perception of the frequency of a sound

23
Q

What is the fundamental frequency?

A

rate of vocal cord vibrations

24
Q

Vocal intensity is based on…?

A

subglottal pressure

Voice Disorders (9 decks)

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