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Muscles - Head

Muscles of the Head

TermDefinition
frontalis origin: epicranial aponeurosis
frontalis insertion: skin of eyebrows, bridge of nose
frontalis "forehead" muscle
frontalis action: raises eyebrows, wrinkles forehead
occipitalis origin: occipital bone
occipitalis insertion: epicranial aponeurosis
occipitalis base of neck
occipitalis action: tenses and retracts scalp
orbicularis oculi origin: medial margin of orbit
orbicularis oculi insertion: skin around eyelids
orbicularis oculi circles your eye and eye socket
orbicularis oculi action: closes eye
zygomaticus origin: zygomatic bone
zygomaticus insertion: angle of mouth; upper lip
zygomaticus near corner of lips
zygomaticus action: draws corner of mouth back and up
orbicularis oris origin: maxillary bone and mandible
orbicularis oris insertion: lips
orbicularis oris circles lips
orbicularis oris compresses, purses lips
buccinator origin: maxillary bone and mandible
buccinator insertion: blends into fibers of orbicularis oris
buccinator cheek muscle
buccinator action: compresses cheeks
platysma origin: from cartilage of second rib to acromion of scapula
platysma insertion: mandible and skin of cheek
platysma broad sheet of muscle rising from chest and shoulder and runs up the neck
platysma action: tenses skin of neck, depresses mandible
masseter origin: zygomatic arch
masseter insertion: lateral surface of mandible
masseter near angle of jaw
masseter action: elevates mandible
temporalis origin: along temporal lines of skull
temporalis insertion: coronoid process of mandible
temporalis side of skull
temporalis action: elevates mandible
Created by: lizzy.spangler
 

 



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