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8 Cards in this Set
- Front
- Back
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These mm perform jaw elevation
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temporalis, masseter, medial pterygoid
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These mm perform jaw depression
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digastric, mylohyoid, geniohyoid
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During jaw depression, the hyoid is stabilized by the :
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infrahyoid mm
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In jaw depression, lateral movement occurs toward the ____ side.
What m enables that lateral movement? |
working
The lateral pterygoid on the balancing side. unilateral protrusion. |
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In jaw elevation, lateral movement occurs toward the ____ side.
What m enables that lateral movement? |
Balancing.
Posterior temporalis on the balancing side. unilateral retrusion. |
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What are the two main power stroke mm? what other mm contribute?
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LATERAL PTERYGOID ON WORKING SIDE IS MOST IMPORTANT! does unilateral protrusion.
medial pterygoid on the working side also helps a lot. temporalis and masseter also help, not as important. |
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adults have __ teeth
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32.
per quarter: 2 incisors, 1 canine, 2 premolars, 3 molars. |
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what mm (s) contribute to the CLOSING stroke?
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Posterior temporalis on the balancing side.
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