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anatomy - R.J.

muscles of the face

muscleorigininsertionaction
Corrugator (supercilii) -draws eyebrow medially & inferiorly; produces vertical wrinkling of forehead (frowning,
Orbicularis Oculi -Maxilla -frontal -upper and lower eyelids -closes eyelids/wink /blink
Levator labii superioris Elevates upper lip
Zygomaticus major -elevates angle of the mouth (smiling & laughing)
Buccinator -maxilla -madible -angle (angle of the mouth) -compresses cheeks in blowing, sucking, eating
Risorius -draws angle of mouth laterally, retraction; (laugh, grin, tenseness, grimace)
Orbicularis oris -maxilla -mandible Upper & lower lips -closes, protrudes & shapes lips ducing speech/food manipulation/kissing/whisle
Mentalis Protrudes lower lip (pouting, doubt)
Depressor labii inferioris -depresses lower lip
Depressor anguli oris -draws down corner of mouth
Platysma -upper fascia of thorax of mouth -mandible & corner -depresses mandible & depresses angle of mouth
Epicranius -frontalis -occipitalis -epicranial -aponeurosis -occipital -temporal -skin of forehead -epicranial apponeurosis -raises eyebrows & wrinkles forehead -acts with frontalis to draw scalp backwards (surprised
Temporalis -frontal; parietal; temporal -mandible -elevates &retracts mandible
Masseter -maxilla; zygomatic arch -mandible -elevates mandible; protrudes mandible
Sternocleidomastoid -sternum; clavicle -temporal (mastoid -flexes head neck; laterally rotates head
Trapezius -ocipital (ext. occip. Prot. & sup nuchal line -ligamentum nuchae; C7; all T vertebrae -scapula (spine, acromion) -clavicle -elevation, depression, adduction of scalpula -extensor of head
Created by: mal1ce13