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Anatomy: Block 2- Head and Neck > Muscles of Facial Expression > Flashcards

Muscles of Facial Expression Flashcards

1
Q

Occipitofrontalis frontal belly proximal attachment

A

Epicranial aponeurosis

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2
Q

Occipitofrontalis frontal belly distal attachment

A

Skin and subcutaneous tissue of eyebrows and forehead

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3
Q

Occipitofrontalis frontal belly action

A

Elevates eyebrows and wrinkles skin of forehead; protracts scalp

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4
Q

Occipitofrontalis occipital belly proximal attachment

A

Lateral 2/3 of superior nuchal line

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5
Q

Occipitofrontalis occipital belly distal attachment

A

Epicranial aponeurosis

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6
Q

Occipitfrontalis occipital belly action

A

retracts scalp; increasing effectiveness of frontal belly

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7
Q

Orbicularis oculi proximal attachment

A

medial orbital margin; medial palpebral ligament; lacrimal bone

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8
Q

Orbicularis oculi distal attachment

A

Skin around margin of orbit; superior and inferior tarsal plates

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9
Q

Orbicularis oculi action

A

Closes eyelids: palpebral part does so gently; orbital part tightly (winking)

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10
Q

Corrugator supercilli proximal attachment

A

Medial end of supercilliary arch

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11
Q

Corrugator supercilli distal attachment

A

Skin superior to middle of supraorbital margin and superciliary arch

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12
Q

Corrugator supercilli action

A

Draws eyebrow medially and inferiorly, creating vertical wrinkles above nose

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13
Q

Procerus proximal attachment

A

Fascia aponeurosis covering nasal bone and lateral nasal cartilage

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14
Q

Procerus distal attachment

A

Skin of inferior forehead between eyebrows

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15
Q

Procerus action

A

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

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16
Q

Levator labii superioris proximal attachment

A

Infraorbital margin (maxilla)

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17
Q

Lavator labii superioris distal attachment

A

Skin of upper lip

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18
Q

Levator labii superioris action

A

Part of dilators of mouth; retract (elevate) and/or evert upper lip; deepen nasolabial sulcus

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19
Q

Zygomaticus minor action

A

Part of dilators of mouth; retract (elevate) and/or evert upper lip; deepen nasolabial sulcus

20
Q

Zygomaticus minor proximal attachment

A

Anterior aspect, zygomatic bone

21
Q

Zygomaticus minor distal attachment

A

Skin of upper lip

22
Q

Buccinator action

A

Presses cheek against molar teeth; resists distension when blowing

23
Q

Buccinator proximal attachment

A

Mandible, alveolar process of maxilla and mandible, pterygomandibular raphe

24
Q

Buccinator distal attachment

A

Angle of mouth; orbicularis oris

25
Q

Zygomaticus major action

A

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

26
Q

Zygomaticus major proximal attachment

A

Lateral aspect of zygomatic bone

27
Q

Zygomaticus major distal attachment

A

Angle of mouth

28
Q

Levator anguli oris action

A

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

29
Q

Levator anguli oris proximal attachment

A

Infraorbital maxilla (canine fossa)

30
Q

Levator anguli oris distal attachment

A

Angle of mouth

31
Q

Risorius action

A

Part of dilators of mouth; widens rima oris, as when grinning

32
Q

Risorius proximal attachment

A

Parotid fascia and buccal skin

33
Q

Risorius distal attachment

A

Angle of the mouth

34
Q

Depressor anguli oris action

A

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

35
Q

Depressor anguli oris proximal attachment

A

Anterolateral base of mandible

36
Q

Depressor anguli oris distal attachment

A

Angle of mouth

37
Q

Depressor labii inferioris action

A

Part of dilators of mouth; retracts and/or everts lower lip

38
Q

Depressor labii inferioris proximal attachment

A

Platysma and anterolateral body of mandible

39
Q

Depressor labii inferioris distal attachment

A

Skin of lower lip

40
Q

Mentalis action

A

Elevates and protrudes lower lip; elevates skin of chin

41
Q

Mentalis proximal attachment

A

Body of mandible (anterior to roots of inferior incisors)

42
Q

Mentalis distal attachment

A

Skin of chin

43
Q

Platysma action

A

Depresses mandible; tenses skin of inferior face and neck

44
Q

Platysma proximal attachment

A

Subcutaneous tissue of infraclavicular and supraclavicular regions

45
Q

Platysma distal attachment

A

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

Anatomy: Block 2- Head and Neck (5 decks)

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