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Muscles of the Face, Head, and Neck > Muscle Actions > Flashcards

Muscle Actions Flashcards

1
Q

Sternocleidomastoid

A

Unilaterally: Tilt head sideways, rotate face
Bilaterally: Extend head, flex cervical vertebrae

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2
Q

Platysma

A

Draw mouth inferiorally

Draws skin of the neck superiorally

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3
Q

Mylohyoid

A

Elevates hyoid during swallowing and speech

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4
Q

Geniohyoid

A

Widens pharynx, shortens floor of the mouth

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5
Q

Stylohyoid

A

Elevate and retract the hyoid, elongates floor of the mouth

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6
Q

Digastric Anterior and Posterior

A

Depress mandible, elevate and steady the hyoid

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7
Q

Sternohyoid

A

Depress hyoid during swallowing

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8
Q

Omohyoid

A

Depress and tract the hyoid

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9
Q

Sternohyoid

A

Depress hyoid and larynx

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10
Q

Thryohyoid

A

Depress hyoid, elevate larynx

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11
Q

Anterior scalene

A

Flex neck laterally, elevate rib 1

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12
Q

Middle scalene

A

Flex neck laterally, elevate rib 1

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13
Q

Posterior scalene

A

Flex neck laterally, elevate rib 2

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14
Q

Temporalis

A

Elevate and retract mandible

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15
Q

Masseter

A

Elevate and protract mandible

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16
Q

Lateral pterygoid

A

depress and protract mandible; lateral displacement

17
Q

Medial pterygoid

A

elevate and protract mandible

18
Q

Orbicularis oculi

A

close eyelid

19
Q

orbicularis oris

A

close mouth, pucker lips

20
Q

buccinator

A

press cheek against the teeth, draws lips back

21
Q

zygomaticus major

A

draws angle of the mouth upward and laterally

22
Q

frontalis

A

elevate the eyebrow

23
Q

levator palpebrae superioris

A

elevate the superior eyelid

24
Q

superior rectus

A

elevate, adduct, rotate eye medially

25
Q

lateral rectus

A

abduct eye

26
Q

inferior rectus

A

depress, adduct, and rotate eye laterally

27
Q

medial rectus

A

adduct eye

28
Q

superior oblique

A

abduct, depress, rotate eye medially

29
Q

inferior oblique

A

abduct, elevate, rotate eye laterally

30
Q

stylopharyngeus

A

elevate pharynx and larynx for speech and swallowing

31
Q

levator veli palatini

A

elevate palate during swallowing and yawning

32
Q

tensor veli palatini

A

tense palate and opens Eustachian tube during swallowing and yawning

33
Q

genioglossus

A

depress tongue, protude tongue; unilaterally wags tongue

34
Q

styloglossus

A

retrude tongue, curls sides

35
Q

hyoglossus

A

depress tongue, retrude tongue

36
Q

cricothyroid

A

stretch and tense vocal ligaments

37
Q

arytenoid

A

adduct arytenoid cartilages

38
Q

posterior crico-arytenoid

A

abduct vocal folds

39
Q

thyroarytenoid

A

relax vocal ligament

Muscles of the Face, Head, and Neck (4 decks)

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