Muscles of the Face- Lab Practical

Frontalis

Across forehead: Raises eyebrows & wrinkles forehead (surprise)

Occipitalis

Back of head: Draws head backwards (wrinkles brow)

Temporalis

Side of head: Raises the jaw (chewing)

Orbicularis Occuli

Surrounds eye: Closes eye (winking/blinking)

Zygomaticus

Along cheek to mouth: Pulls corners of mouth back (smiling/laughing)

Masseter

Cheek to jaw: Clenches teeth and raises lower jaw (chewing)

Buccinator

Fibers are transverse across cheek: compresses cheeks (blowing/whistling)

Platysma

Bandage over pecs, front of throat and chin: Pulls lower jaw down & wrinkles neck (yawning/fear/terror)

Sternocleidomastoid

Side of neck: Pulls head forwards and back, rotates head side to side (whiplash)

Levators Labii of the Upper Lip

Inner eye to upper lip: Elevates upper lip (smiling)

Obicularis Oris

Around the mouth: Closes mouth (pout/kiss/doubt)

Risorius

Max & Mandy to side of mouth: Raises the mouth & pulls back lips (smiling)

Corrugator

Bony support of eyebrow to forehead: Draws eyebrows together (frowning)

Mentalis

Front of mandible to chin: Lifts the chin & moves the lower lip forward (doubt)

Depressors of the Lower Lip

Front of mandible to lower lip: depresses/lowers the lower lip (sad)