Muscles of Facial Expression Functions

Zygomatic Major and Minor

Elevate corners of mouth

Levator anguli oris

lifts angles of the mouth

Risorius

Pulls the corners of the mouth laterally

Orbicularis oculi

contracts eyes, can create crow’s feet for genuine smiles

Orbicularis oris

Closes and puckers the lips

Buccinator

Compresses the cheeks inward, in whistling it directs the airflow

Orbicularis oris

Protrudes lips

Mentalis

Pushes up the lower lip, creating pout

Depressor labii inferioris

Lowers the lower lip slightly

Frontalis

Raises the eyebrows and wrinkles the forehead

Orbicularis oculi

Partially closes the eyes when deep in thought

Corrugator supercilii

Brings eyebrows together medially, creating a concentrated expression

Corrugator supercilii

Draws eyebrows downwards and inward, causing furrowing

Procerus

Wrinkles the bridge of the nose

Orbicularis oris

Tightens the lips

Depressor anguli oris

Pulls the corners of the mouth downward