Muscles Of Facial Expression Flashcards

0
Q

Where does the buccinator insert?

A

The cheeks near the corner of the mouth, some interlace with fibers of the lips

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1
Q

Where does the buccinator originate?

A

Alveolar process the maxilla , pterygomandibular raphe

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2
Q

Action of buccinator?

A

Keep food on occlusal surfaces

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3
Q

Innervation of buccinator?

A

Buccal branch of facial nerve

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4
Q

What is the origin of platysma?

A

Fascia of the upper chest

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5
Q

Where does platysma insert

A

Lower border of the mandible , merge with muscles surrounding the mouth

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6
Q

What is the action of the platysma muscle

A

Grimmace

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7
Q

Innervation of platysma is

A

Cervical branch of facial nerve

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