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My head and neck relationships > muscle function > Flashcards

muscle function Flashcards

1
Q

Orbicularis oris

A

Oral sphinchter

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2
Q

Nasalis

A

Transverse fibers compress & alar fibers widen the nasal aperature

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3
Q

Buccinator [L. bucca, cheek]

A

Compresses cheek

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4
Q

Levator labii superioris

A

Raises & everts upper lip

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5
Q

Levator anguli oris

A

Raises angle of the mouth

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6
Q

Zygomaticus major [G. zygon, yoke, a joining or pair]

A

Raises the buccal angle

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7
Q

Platysma [G. platys, flat, broad]

A

Wrinkles the anterior nuccal skin

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8
Q

Depressor anguli oris

A

Depresses buccal angle laterally

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9
Q

Depressor labii inferioris

A

Draws lower lip downward

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10
Q

Mentalis

A

Raises lower lip

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11
Q

Frontalis

A

Protracts the scalp or elevates eyebrows & nose

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12
Q

Orbicularis oculi

A

Palpebral sphinchter

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13
Q

Lateral rectus

A

Abduction of the eye

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14
Q

Inferior rectus [L. straight]

A

Depression, adduction & extorsion of eye

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15
Q

Inferior oblique

A

Elevation, abduction and extorsion of the eye

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16
Q

Medial rectus

A

Adduction of the eye

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17
Q

Levator palpebrae superioris

A

Elevation of the upper lid

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18
Q

Superior rectus

A

Elevation, adduction & intorsion of the eye

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19
Q

Superior oblique

A

Abduction, depression & intorsion of the eye

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20
Q

Temporalis

A

Elevation & retraction (posterior aspect of the muscle) of the mandible

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21
Q

Masseter

A

Elevation, protraction and retraction (deep fibers) the mandible

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22
Q

Lateral pterygoid

A

Protraction of the mandible & acts with the ipsilateral medial pterygoid to rotate the mandible to produce the side-to-side movements during trituration of food

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23
Q

Medial pterygoid

A

Elevation of the mandible & acts with the ipsilateral lateral pterygoid to rotate the mandible to produce the side-to-side movements during trituration of food

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24
Q

Sternocleidomastoid

A

Flexion of the head & neck, & contralateral rotation of the head

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25
Q

Omohyoid (G. omos, shoulder)

A

Depression of the hyoid

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26
Q

Sternohyoid

A

Depresses the hyoid

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27
Q

Sternothyroid

A

Depression of the elevated larynx

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28
Q

Posterior digastric

A

Depression of the mandible or elevation of the hyoid

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29
Q

Stylohyoid

A

Elevation & retraction of the hyoid

30
Q

Mylohyoid

A

Elevation of the floor of the oral cavity

31
Q

Anterior digastric

A

Depression of the mandible or elevation of the hyoid

32
Q

Scalenus medius

A

Elevation of 1st rib (during forced inspiration) & lateral flexion of the neck

33
Q

Scalenus posterior

A

Elevation of the rib (during forced inspiration)

34
Q

Scalenus anterior

A

Elevation of 1st rib (during forced inspiration) & flexion & rotation of the neck

35
Q

Longus capitis

A

Flexion of the head & neck

36
Q

Longus colli (L. neck)

A

Flexion of the neck

37
Q

Geniohyoid

A

Elevation & anterior displacement of the hyoid, or depression of the mandible with a fixed hyoid

38
Q

Thyrohyoid

A

Depression of the hyoid or elevation of the thyroid cartilage

39
Q

Semispinalis cervicis

A

Extension of the neck

40
Q

Splenius capitis (G. splenion, bandage)

A

Extension & lateral flexion of the head

41
Q

Semispinalis capitis

A

Extension of the head

42
Q

Splenius cervicis

A

Together extend neck; single side does ipsilateral rotation

43
Q

Longissimus capitis

A

Extension & ipsilateral rotation of the head

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 the head

47
Q

Obliquus capitis superior

A

Posterolateral flexion of the head

48
Q

Genioglossus

A

Protrusion of the tongue

49
Q

Styloglossus

A

Elevation & retraction of the tongue

50
Q

Hyoglossus (G. glossa, tongue)

A

Depression of the tongue

51
Q

Tensor veli palatini

A

Unilateral deviation & bilateral tension of the soft palate

52
Q

Musculus uvulae (L. uva, grape)

A

Aids in palatopharyngeal closure

53
Q

Palatoglossus

A

Elevation of the root of the tongue & approximation of the palatoglossal folds

54
Q

Palatopharyngeus

A

Elevation of the pharynx & approximation of the palatopharyngeal folds

55
Q

Levator veli palatini

A

Elevates the soft palate

56
Q

Stylopharyngeus

A

Elevation of the pharyngeal wall

57
Q

Middle constrictor

A

General sphinchteric & peristalic action in swallowing

58
Q

Superior constrictor

A

General sphinchteric & peristalic action in swallowing

59
Q

Inferior constrictor

A

General sphinchteric & peristalic action in swallowing

60
Q

Salpingopharyngeus (G. salpinx, trumpet)

A

Elevation of the superior lateral aspect of the pharyngeal wall

61
Q

Cricothyroid

A

Tenses the vocal folds

62
Q

Interarytenoids (transverse & oblique)

A

Closes glottis & assists in closing aryepiglottic folds

63
Q

Lateral cricoarytenoid (G. krikos, a ring)

A

Closes glottis (adducts the vocal folds)

64
Q

Thyroarytenoid

A

Closes glottis or slackens vocal folds

65
Q

Aryepiglotticus

A

Closes the aryepiglottic folds

66
Q

Posterior cricoarytenoid

A

Opens the glottis (abducts the vocal folds)

67
Q

Vocalis

A

Slackens tensed vocal ligaments for changes in pitch

68
Q

Thyroepiglotticus

A

Widens glottis

69
Q

Stapedius

A

Dampens vibrations of the stapes

70
Q

Tensor tympani

A

Dampens movement of the malleus

My head and neck relationships (12 decks)

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