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24 Cards in this Set
- Front
- Back
masseter origin
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maxilla & zygomatic arch
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masseter insertion
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angle and ramus of mandible
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masseter action
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elevates mandible, as in closing mouth, and retracts (craws back) mandible
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temporalis origin
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temporal bone
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temporalis insertion
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coronoid process and ramus of mandible
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temporalis action
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elevates and retracts mandible
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medial pterygoyd origin
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medial surface of lateral portion of pterygoid process of spenoid bone; maxilla
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medial pterygoyd action
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elevates and protracts (protrudes)mandible and moves mandible from side to side
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lateral pterygoid origin
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greater wing and lateral surface of lateral portion of pterygoid process of sphenoid bone
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lateral pterygoid insertion
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condyle of mandible; temporomandibular joint (TMJ)
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lateral pterygoid action
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protracts mandible, depresses mandible as in opening mouth, and moves mandible from side to side
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medial pterygoyd insertion
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angle and ramus of mandible
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genioglossus origin
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mandible
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genioglossus insertion
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undersurface of tongue and hyoid bone
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genioglossus action
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depresses tongue and thrusts it anteriorly (protraction)
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styloglossus origin
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styloid process of temporal bone
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styloglossus insertion
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side and undersurface of tongue
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styloglossus action
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elevates tongue and draws it posteriorly (retraction)
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palatoglossus origin
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anterior surface of soft palate
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palatoglossus insertion
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side of tongue
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palatoglossus action
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elevates posterior portion of tongue and raws soft palate down on tongue
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hyoglossus origin
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greater horn and body of hyoid bone
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hyoglossus insertion
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side of tongue
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hyoglossus action
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depresses tongue and draws down its sides
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