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Gross Anatomy Lab > Face and Scalp muscles (O, I, A) > Flashcards

Face and Scalp muscles (O, I, A) Flashcards

1
Q

Action: frontalis

A

Raises eyebrows and wrinkles forehead

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2
Q

Origin: frontalis

A

Epicranial aponeurosis

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3
Q

Insertion: frontalis

A

Skin and subcutaneous tissue of eyebrows and forehead

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4
Q

Action: occipitalis

A

Retracts the scalp

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5
Q

Origin: occipitalis

A

Lateral two-thirds of superior nuchal line

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6
Q

Insertion: occipitalis

A

Epicranial aponeurosis

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7
Q

Action: orbicularis oculi

A

Closes eyelids

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8
Q

Origin: orbicularis oculi

A

Medial orbital margin; medial palpebral ligaments; lacrimal bone

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9
Q

Insertion: orbicularis oculi

A

Skin around orbital margin; superior and inferior tarsal plates

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10
Q

Action: corrugator supercilli

A

Brings eyebrows closer together

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11
Q

Origin: corrugator supercilli

A

Medial end of superciliary arch

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12
Q

Insertion: corrugator supercilli

A

Skin of medial forehead

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13
Q

Action: procerus plus transverse part of nasalis

A

Depresses medial end of eyebrow; wrinkles skin of dorsum over nose

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14
Q

Origin: procerus plus transverse part of nasalis

A

Fascia aponeurosis covering nasal bone and lateral nasal cartilage

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15
Q

Insertion: procerus plus tranverse part of nasalis

A

Skin of inferior forehead, between eyebrows

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16
Q

Action: alar part of nasalis plus levator labii superioris

A

Depresses ala laterally, dilating anterior nasal aperture; flaring nostrils

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17
Q

Insertion: alar part of nasalis plus levator labii superioris

A

Major alar cartilage

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18
Q

Origin: alar part of nasalis plus levator labii superioris

A

Frontal process of maxilla

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19
Q

Action: platysma

A

Depresses mandible, tenses skin of inferior face and neck

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20
Q

Origin: platysma

A

Subcutaneous tissue of infraclavicular and supraclavicular region

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21
Q

Insertion: platysma

A

Base of mandible; skin of cheek and lower lip; orbicularis oris, angle of mouth

22
Q

Action: mentalis

A

Elevates and protrudes lower lip; elevates skin of chin; showing doubt

23
Q

Origin: mentalis

A

Body of mandible

24
Q

Insertion: mentalis

A

Skin of chin

25
Q

Action: depressor labii inferioris

A

Part of dilators of mouth; retracts and/or everts lower lip (pouting, sadness)

26
Q

Origin: depressor labii inferioris

A

Platysma and anterolateral body of the mandible

27
Q

Insertion: depressor labii inferioris

A

Skin of lower lip

28
Q

Action: risorius

A

Part of dilators of mouth: depresses labial commissure bilaterally to frown

29
Q

Origin: risorius

A

Parotid fascia and buccal skin

30
Q

Insertion: risorius

A

Angle of mouth

31
Q

Action: levator anguli oris

A

Part of dilators of mouth: widens oral fissure, as when grinning or grimacing

32
Q

Origin: levator anguli oris

A

Infra-orbital maxilla

33
Q

Insertion: levator anguli oris

A

Angle of mouth

34
Q

Action: buccinator

A

Aids mastication, tenses cheeks in blowing and whistling , aids in closure of mouth

35
Q

Origin: buccinator

A

Mandible, alveolar processes of maxilla and mandible, pterygomandibular raphe

36
Q

Insertion: buccinator

A

Angle of mouth

37
Q

Action: zygomaticus minor

A

retract (elevate) and/or evert upper lip; deepen nasolabial sulcus (showing sadness)

38
Q

Origin: zygomaticus minor

A

Anterior aspect, zygomatic bone

39
Q

Insertion: zygomaticus minor

A

Skin of upper lip

40
Q

Action: zygomaticus major

A

Part of dilators of mouth: elevate labial commissure - bilaterally to smile; unilaterally to sneer

41
Q

Origin: zygomaticus major

A

Lateral aspect of zygomatic bone

42
Q

Insertion: zygomaticus major

A

Angle of mouth

43
Q

Action: levator labii superioris

A

Part of dilators; elevate and/or evert upper lip; deepen nasolabial sulcus

44
Q

Insertion: levator labii superioris

A

Skin of upper lip

45
Q

Origin: levator labii superioris

A

Infra-orbital margin (maxilla)

46
Q

Action: orbicularis oris

A

Narrows orifice of mouth, purses lips and puckers lip edges

47
Q

Insertion: orbicularis oris

A

Mucous membrane of lip

48
Q

Origin: orbicularis oris

A

Medial maxilla and mandbile, deep surface of perioral skin

49
Q

Action: depressor anguli oris

A

Part of dilators of mouth; depresses labial commissure bilaterally to frown

50
Q

Origin: depressor anguli oris

A

Anterolateral base of mandible

51
Q

Insertion: depressor anguli oris

A

Angle of mouth

Gross Anatomy Lab (9 decks)

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