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III - review > Muscle action > Flashcards

Muscle action Flashcards

1
Q

Buccinator

A

compresses cheek

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2
Q

Depressor anguli oris

A

depresses buccal angle laterally

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3
Q

depressor labii inferioris

A

draws lower lip downward

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4
Q

frontalis

A

protracts the scalp or elevates eyebrows and nose

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5
Q

levator anguli oris

A

raises angle of mouth

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6
Q

levator labii superioris

A

raises and everts upper lip

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7
Q

mentalis

A

raises lower lip

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8
Q

nasalis

A

traverse fibers compress and alar fibers widen the nasal aperture

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9
Q

orbicularis oculi

A

palpebral (eyelids) sphincter

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10
Q

orbicularis oris

A

oral sphicter

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11
Q

platysma

A

wrinkles the anterior nuccal skin

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12
Q

zygomaticus major

A

raises buccal angle

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13
Q

Inferior oblique

A

EYE:
elevation
abduction
extorsion

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14
Q

Inferior rectus

A

EYE:
depression
adduction
extorsion

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15
Q

lateral rectus

A

Eye abduction

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16
Q

levator palpebrae superioris

A

elevation of upper lid

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17
Q

medial rectus

A

adduction of the eye

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18
Q

superior oblique

A

EYE
abduction
depression
intorsion

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19
Q

superior rectus

A

EYE
elevation
adduction
intorsion

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20
Q

massester

A

MANDIBLE
elevation
protraction
retraction (deep fibers)

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21
Q

temporalis

A

MANDIBLE
elevation
retraction (posterior aspect of muscle)

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22
Q

lateral pterygoid

A

MANDIBLE
protraction
acts with ipsilateral medial pterygoid to rotate the mandible to produce the side-to-side movements during chewing

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23
Q

medial pterygoid

A

MANDIBLE
elevation
acts with ipsilateral lateral pterygoid to rotate the mandible to produce the side-to-side movements during chewing

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24
Q

anterior digastric

A

depression of mandible
or
elevation of hyoid

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25
Q

posterior digastric

A

depression of mandible
or
elevation of hyoid

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26
Q

geniohyoid

A

elevation and anterior displacement of hyoid
or
depression of mandible with a fixed hyoid

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27
Q

longus capitis

A

flexion of head and neck

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28
Q

longus colli

A

flexion of neck

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29
Q

mylohyoid

A

elevation of floor of the oral cavity

30
Q

omohyoid

A

depression of hyoid

31
Q

scalenus anterior

A

elevation of 1st rib (during forced inspiration)
and
flexion and rotation of neck

32
Q

scalenus medius

A

elevation of 1st rib (during forced inspiration)
and
lateral flexion of neck

33
Q

scalenus posterior

A

elevation of the rib (during forced inspiration)

34
Q

sternocleidomastoid

A

flexion of head and neck
and
contralateral rotation of the head

35
Q

sternohyoid

A

depresses hyoid

36
Q

sternothyroid

A

depression of the elevated larynx

37
Q

stylohyoid

A

elevation and retraction of hyoid

38
Q

thyrohyoid

A

depression of the hyoid
or
elevation of the thyroid cartilage

39
Q

splenius capitis

A

extension and lateral flexion of head

40
Q

splenius cervicis

A

together - extend neck

single side - ipsilateral rotation

41
Q

longissimus capitis

A

extension and ipsilateral rotation of the head

42
Q

semispinalis capitis

A

extension of the head

43
Q

semispinalis cervicis

A

extension of the neck

44
Q

rectus capitis posterior major

A

extension of the head

45
Q

rectus capitis posterior minor

A

extension of the head

46
Q

obliquus capitis inferior

A

ipsilateral rotation of head

47
Q

obliquus capitis superior

A

posterolateral flexion of head

48
Q

genioglossus

A

protrusion of tongue

49
Q

hyoglossus

A

depression of tongue

50
Q

styloglossus

A

elevation and retraction of tongue

51
Q

levator veli palatini

A

elevates soft palate

52
Q

musculus uvulae

A

aids in palatopharyngeal closure

53
Q

palatoglossus

A

elevation of the root of the tongue
and
approximation of the palatoglossal folds

54
Q

palatopharyngeus

A

elevation of the pharynx

approximation of the palatopharyngeal folds

55
Q

tensor veli palatini

A

unilateral deviation of soft palate
and
bilateral tension of soft palate

56
Q

inferior constrictor

A

general sphincteric action in swallowing
and
peristaltic action in swallowing

57
Q

middle constrictor

A

general sphincteric action in swallowing
and
peristaltic action in swallowing

58
Q

superior constrictor

A

general sphincteric action in swallowing
and
peristaltic action in swallowing

59
Q

salpingopharyngeus

A

elevation of the superior lateral aspect of the pharyngeal wall

60
Q

stylopharyngeus

A

elevation of the pharyngeal wall

61
Q

aryepiglotticus

A

closes the aryepiglottic folds

62
Q

lateral cricoarytenoid

A

closes the glottis (adducts the vocal folds)

63
Q

posterior cricoarytenoid

A

opens the glottis (abducts the vocal folds)

64
Q

cricothyroid

A

tenses the vocal folds

65
Q

interarytenoids (traverse and oblique)

A

closes glottis
and
assists in closing aryepiglottic folds

66
Q

thryoarytenoid

A

closes glottis
or
slackens vocal folds

67
Q

thyroepiglotticus

A

widens glottis

68
Q

vocalis

A

slackens tensed vocal ligaments for changes in pitch

69
Q

stapedius

A

dampens vibrations of the stapes

70
Q

tensor tympani

A

dampens movement of the malleus

III - review (9 decks)

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