Facial expession



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MUSCLES OF FACIAL EXPRESSION & THEIR ASSOCIATED FACIAL EXPRESSIONS

MUSCLES

FACIAL EXPESSION

Epicranial


Surprise

Orbicularis Oculi

Closing eyelid

Corrugator Supercilli

Frowning

Orbcularis Oris

Closing &pursing lips, as well as pouting & grimacing

Buccinator

Chewing

Risorus

Stretching Lips

Levator Labii Superioris

Raising upper lip

Levator Labii Superioris Alaeque Nasi

Raising upper lip & dilating nostrils in a sneer

Zygomaticus minor

Raising upper lip, assisting in smiling

Zygomaticus major

Smiling

Levator Anguli Oris

Smiling

Depressor Labii Oris

Frowning

Depressor Labii Inferioris

Lowering lower lip

Mentalis

Raising chin & protruding lower lip

Platysma

Raising neck skin & Grimacing

ORINGIN & INSERTION OF THE MUSCLES OF FACIAL EXPRESSION

MUCLES

ORIGIN

INSERTION

Epicranial

Front belly: epicranial aponerosis Occipitial bell: occipital & temporal bone

Frontal belly: eyebrow root of nose Occipital belly: epicranial aponeurosis

Obicularis Oculi

Orbital rim, frontal & maxillary bones

Lateral region of eye, some encircle eye

Corrugator Supercilii

Frontal Bone

Eyebrow

Corrugator Oris

Encircles mouth

Angle of mouth

Buccinator

Maxilla, mandible, & pterygomandibular raphe

Angle of mouth

Risorius

Fascia superficial to masseter muscle

Angle of mouth

Lavator Labii Superioris

Maxilla

Upper lip

Lavator Labii Superioris aleque nasi

Maxilla

Ala of nose & upper lip










Zygomaticus major

Zygomatic bone

Angle of mouth

Zygomaticus minor

Zygomatic bone

Upper lip

Lavator anguli oris

Maxilla

Angle of mouth

Depressor anguli oris

Mandible

Angle of mouth

Depressor labii inferioris

Mandible

Lower lip

Mentalis

Mandible

Chin

Platysma

Clavicle & soulder

Mandible & muscles of the mouth



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