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Anatomy Week 15 > Muscles of Facial Expression (MT) > Flashcards

Muscles of Facial Expression (MT) Flashcards

1
Q

Muscles of Calvaria

A

Epicranius muscle, consisting of:

- Frontal and Occipital Bellies of Occipitofrontalis

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2
Q

Muscles of Orbital Group

A

Orbicularis Oculi:

  • Orbital Part
  • Palpebral Part
  • Lacrimal Part
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3
Q

Muscles of the Oral Group

A
  • Orbicularis Oris
  • Buccuinator
  • Zygomatticus Major and Minor
  • Risorus
  • Levator Labii Superioris and Superioris alaeque nasi
  • Levator/Depressor anguli oris
  • Depressor Labii Inferioris
  • Mentalis
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4
Q

Muscles of the Neck region

A

Platysma

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5
Q

What is the function of the Epicranius muscle?

A
  • Wrinkle the Forehead
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6
Q

Function of Orbicularis Oculi:

  • Orbital Part
  • Palpebral Part
  • Lacrimal Part
A

In general: Closes the Eye

Orbital Part:
- Tightly contracts the skin around the eye

Palpebral Part:
- Palpebral Reflex

Lacrimal Part:
- acts on lacrimal Sac

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7
Q

Orbicularis Oris Function

A

Closes mouth

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8
Q

Buccinator Function

A

Important in eating, drinking, playing trumpet

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9
Q

Zygomaticus major Function

A

Smiling

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10
Q

Zygomaticus Minor Function

A

Smiling

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11
Q

Risorius Function

A

Smiling

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12
Q

Levator Labii Superioris Function

A

Elevates Upper Lip

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13
Q

Levator Labii Superioris alaeque nasi Function

A
  • Elevates Upper Lip

- Flares Nasal Alar Cartilages

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14
Q

Levator Anguli Oris Function

A

Pulls Corner of the Mouth Upward

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15
Q

Depressor Anguli Oris Function

A

Pulls angle of the mouth down

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16
Q

Mentalis Function

A

Pulls skin of the chin upward

17
Q

Platysma Function

A

Elevates Skin of thorax and neck

18
Q

What muscles are important in smiling?

A
  • Zygomaticus Major
  • Zygomaticus Minor
  • Risorius
19
Q

What muscles are important for Elevating the upper lip?

A
  • Levator Labii Superioris

- Levator Labii Superioris Alaeque Nasi

Anatomy Week 15 (10 decks)

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