Muscles Of Facial Expression Flashcards

1
Q

Procerus

A

Origin: Nasal bone

Insertion: Frontal bone and mm of frontalis

ACTION: Elevates skin of nose

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2
Q

Orbicularis Oculi

A

Origin: Mostly from maxilla

Insertion: Brim of the eyelid

ACTION: Closes the eye

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3
Q

Orbicularis Oris

A

Origin: Muscle tissue of various facial mm

Insertion: Brim of the lip

ACTION: Closes the mouth

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4
Q

Zygomaticus Major

A

Origin: Zygomatic bone

Insertion: Angle of the mouth

ACTION: Elevates the angles of the mouth

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5
Q

Depressor Anguli Oris

A

Origin: Body of mandible

Insertion: Angle of the mouth

ACTION: Depresses the angle of the mouth

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6
Q

Mentalis

A

Origin: Mental region of the mandible

Insertion: Skin of the chin

ACTION: Retracts the skin of the chin

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7
Q

Buccinator

A

Origin: Alveolar border of the maxilla and mandible

Insertion: Angle of the mouth

ACTION: To suck in the cheek

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8
Q

Platysma

A

Origin: Mandible

Insertion: Skin over clavicle

ACTION: Contracts skin of the neck

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9
Q

Frontalis

A

Origin: Muscles of the eyebrow region

Insertion: Galea Aponeurotica

ACTION: Elevates eyebrows and draws scalp forward

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