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12 Cards in this Set
- Front
- Back
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Corrugator supercilii - nerve
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facial nerve
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Corrugator supercilii - action
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draws eyebrows together and inferiorly; wrinkles skin of forehead vertically (as in frowning)
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Corrugator supercilii - o, i
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o - arch of frontal bone above nasal bone, i - skin of eyebrow
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Orbicularis oculi - nerve
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facial nerve
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Orbicularis oculi - action
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protects eyes from intense light and injury; various parts can be activated individually; produces blinking, squinting, and draws eyebrows inferiorly
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Orbicularis oculi - o, i
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o - frontal and maxillary bones and ligaments around orbit, i - tissue of eyelid
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Zygomaticus (major and minor) - nerve
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facial nerve
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Zygomaticus (major and minor) - action
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raises lateral corners of mouth upward (smiling muscle)
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Zygomaticus (major and minor) - o, i
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o - zygomatic hone, i - skin and muscle at corner of mouth
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Risoruis - nerve
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facial nerve
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Risoruis - action
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draws corner of lip laterally; tenses lips; synergist of zygomaticus
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Risoruis - o, i
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o - lateral fascia associated with masseter muscle, i - skin at angle of mouth
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