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16 Cards in this Set

  • Front
  • Back
frontalis
origin: epicranial aponeurosis
insertion: skin above orbit
action: raises eyebrows
occipitalis
origin: occipital bone and mastoid process
insertion: epicranial aponeurosis
action: draws scalp back
temporalis
origin: temporal and frontal bones
insertion: mandible
action: elevates and retracts mandible
orbicularis oculi
origin: medial wall of orbit
insertion: skin around eyelips
action: close eyes
zygomaticus major
origin: zygomatic bone
insertion: orbicularis oris
action: raises corner of mouth (smiling)
zygomaticus minor
origin: zygomatic bone
insertion: upper lip
action: raises upper lip (exposing upper teeth)
orbicularis oris
origin: muscles surrounding mouth
insertion: skin at corner of mouth
action: closes and purses lips
masseter
origin: maxilla and zygomatic arch
insertion: mandible
action: elevates mandible (closing mouth, chewing)
buccinator
origin: maxilla and mandible
insertion: orbicularis oris
action: whistle
platysma
origin: fascia over deltoid and pectoralis major muscle
insertion: mandible
action: pouting (depresses mandible)
sternocleidomastoid
origin: sternum and clavicle
insertion: mastoid process
action: flexes head, rotates head from side to side
digastric
origin: mandible and mastoid process
insertion: hyoid bone
action: depresses mandible
mylohyoid
origin: mandible
insertion: hyoid
action: elevates hyoid
sternohyoid
origin: manubrium and first costal cartilage
insertion: hyoid bone
action: depresses hyoid bone
levator scapulae
origin: c1-c4
insertion: scapula
action: elevates, rotates, and retracts scapula
trapezius
origin: occipital bone, spines of vertebrae
insertion: clavicle, scapula
action: extends head and elevates scapula