TMJ: Muscles of Facial Expression Flashcards by Kei Cze Prentis | Brainscape

Q

Occipitofrontalis muscle

A

raises eyebrows

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Q

Corrugator supercilli muscle

A

pulls eyebrows down and medially

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Q

Procerus muscle

A

pulls eybrows medially

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Q

Orbicularis Oculi (Orbital part)

A

“scrunch up” eyelids

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Q

Orbicularis Oculi (Palpebral part)

A

close eyelid

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Q

Orbicularis Oris

A

closes lips

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Q

Buccinator

A

cheek compression

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Q

Levator Anguli Oris

A

snearing

pulls angle of mouth laterally smiling

bilateral movement

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Q

Levator Labiis Superior (alaeque nasi)

A

elevates/protracts the upper lip

dilates the nostrils

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Q

Levator Labiis Superioris

A

elevates the upper lip

protracts the upper lip

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Q

Zygomaticus Major

A

draws the angles of the mouth upward and laterally as in laughing

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Q

Mentalis

A

protrudes the lower lip as in pouting or sulking

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Q

Depressor Angulioris

A

pulls mouth down and laterally

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Q

Depressor Labii Inferioris

A

curls lip downwards and laterally

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Q

Platysma

A

depresses lower lip and angle of mouth

expression of horror

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Q

Depression ROM

A

norm = 35-45mm

Q

Protrusion ROM

A

norm = 6-9mm

Q

Lateral Excursion ROM

A

norm = 10-12mm