Exam 2 Study Guide Flashcards

1
Q

What is an intrinsic laryngeal muscle?

A

an intrinsic muscle has both origin and insertion on laryngeal cartilages

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2
Q

What is an extrinsic laryngeal muscle?

A

an extrinsic muscle has one attachment on a laryngeal cartilage and the other attachment on a nonlaryngeal structure

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3
Q

What are the intrinsic laryngeal muscles?

A

adductors, abductors, tensors and relaxers

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4
Q

As pitch increases what also increases?

A

frequency increases

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5
Q

As pitch decreases what also decreases?

A

frequency decreases

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6
Q

What is the function of tensors?

A

stretch vocal folds, results in thinner and tensor vocal folds creates a higher pitch

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7
Q

What is the function of a relaxer?

A

shorten vocal folds, results in thicker and laxer vocal folds (lower pitch)

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8
Q

What are the lip elevators?

A

levator labii superioris, zygomatic minor, zygomatic major, levator Anguli oris

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9
Q

What are the lip depressors?

A

depressor labii inferioris, depressor anguli oris, mentalis muscle, and platysma

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10
Q

What is the function of the levator labii superioris and zygomatic minor?

A

to elevate upper lip

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10
Q

What is the function of the zygomatic major?

A

to elevate and retract angle of the mouth – smiling

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11
Q

What is the function of the levator anguli oris?

A

to draw mouth up medially

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12
Q

What is the function of the depressor labii inferioris?

A

pull lip down and out

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13
Q

What is the function of the depressor anguli oris?

A

depresses corners of the mouth

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14
Q

What is the function of the mentalis muscle?

A

to elevate and wrinkle chin and pulls lower lip out (pouting)

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15
Q

What is the function of the platysma?

A

to depress the mandible

16
Q

What are the intrinsic tongue muscles?

A

superior longitudinal, inferior longitudinal, transverse muscle, vertical muscle

17
Q

What are the extrinsic tongue muscles?

A

genioglossus, hyoglossus, styloglossus, palatoglossus,

18
Q

What is the function of the superior longitudinal?

A

to elevate the tongue tip

19
Q

What is the function of the inferior longitudinal muscle?

A

to pull the tongue tip down

20
Q

what is the function of the transverse muscle?

A

when contracted to narrow the tongue tip

21
Q

What is the function of the vertical muscle?

A

when contacted to flatten the tongue tip

22
Q

What is the genioglossus?

A

the primary tongue mover (the bulk of the tongue)

23
Q

What is the function of the hyoglossus?

A

to pull the sides of the tongue down

24
Q

what is the function of the styloglossus?

A

to draw the tongue back and up

25
Q

What is the function of the palatoglossus?

A

elevates the back of the tongue and lowers the velum