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Speech Anatomy (Anatomy) > Articulatory System: Lip Muscles > Flashcards

Articulatory System: Lip Muscles Flashcards

1
Q

Basic speech muscles

A

Ring group: Orbicularis oris
Transverse group: Buccinator, Risorius

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2
Q

Facial expression muscles

A

Angular:
Zygomatic major
Zygomatic minor
Levator labii superior
Depressor labii inferior

Vertical:
Levator anguli oris
Depressor anguli oris
Mentalis

Parallel:
Incisivus labii superior
Incisivus labii inferior

Neck:
Platysma

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3
Q

Oribularis oris Attachments

A

Maxilla
Mandible

Intrinsic ring encircles lip
Extrinsic ring converges from orbicularis oris to other lip muscles

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4
Q

Orbicularis oris Functions

A

Lip rounder /u/
Lip purser /m/
Lip compressor /p/

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5
Q

Buccinator Attachments

A

Pterygomandibular ligament
OO

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6
Q

Buccinator Functions

A

Compress lips against teeth or spread lips
/m/ or /p/
Dimple mouth corner

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7
Q

Risorius Attachments

A

Masseter fascia
Corner of OO

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8
Q

Risorius Functions

A

Spread lips sideways
/i/

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9
Q

Zygomatic major Attachments

A

Zygomatic bone
Corner of OO

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10
Q

Zygomatic major Function

A

Draws corner of lips upwards and to the side
“Smile”

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11
Q

Zygomatic minor Attachments

A

Zygomatic bone
Upper OO lateral to midline

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12
Q

Zygomatic minor Functions

A

Draws lips upward and to side
“Smile”

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13
Q

Levator labii superior Attachments

A

Maxilla bone
Upper OO lateral to midline

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14
Q

Levator labii superior Functions

A

Lifts upper lip only
“Sneer”

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15
Q

Depressor labii inferior Attachments

A

Mandible
Blends into lower OO lateral to midline

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16
Q

Depressor labii inferior Functions

A

Pulls lower lip downward
“Duh face”

17
Q

Levator anguli oris Attachments

A

Maxilla
Corner of OO, both upper and lower

18
Q

Levator anguli oris Functions

A

Pulls corner of mouth upward
“Smile”
Close mouth by drawing lower lip up

19
Q

Depressor anguli oris Attachments

A

Mandible
Corner of OO, mostly upper OO

20
Q

Depressor anguli oris Functions

A

Pulls corner of lip downward
“Frown”

21
Q

Mentalis Attachments

A

Mandible
Midline of lower OO

22
Q

Mentalis Functions

A

Outward curling of lower lip
“Pout”

May contribute to labiodentals

23
Q

Incisivus labii superior/inferior Attachments

A

Maxilla/mandible
Merge with OO on opposite corner

24
Q

Incisivus labii superior/inferior Functions

A

Pulls corner of lips toward center
“Kiss”

25
Q

Platysma Attachments

A

Fascia covering pectoralis major and deltoid
Mandible
Blends into corner of OO

26
Q

Platysma Functions

A

Draws lip corner to side and downward
“Grimace”

Speech Anatomy (Anatomy) (11 decks)

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