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29 Cards in this Set
- Front
- Back
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Intrinsic: Inferior Longitudinal |
Depress tongue tip, side to side motion |
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Intrinsic: Superior longitudinal |
elevates tongue tip, side to side motion |
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Intrinsic: Transverse |
narrow the tongue |
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Intrinsic: vertical |
longitudinal groove |
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Extrinsic: genioglossus |
protrusion poster fibers, retraction anterior fibers, also depresses medial portion |
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Extrinsic: styloglossus |
Retraction of tongue back toward pharynx |
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Extrinsic: hyoglossus |
depresses lateral portion |
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Extrinsic: Palatoglossus |
elevates posterior portion |
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Depresses Mandible |
Digastric, mylohyoid, geniohyoid, lateral (external) pterygoid |
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Elevates mandible |
Masseter, temporalis, medial (internal) pterygoid |
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Temporalis |
Function: elevation & retraction |
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Anterior belly of digastricus |
Function: elevates hyoid bone when mandible is fixed |
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Posterior belly of digastricus |
elevates hyoid bone |
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mylohyoid |
elevates hyoid bone, floor of mouth, tongue, depressed mandible |
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Geniohyoid |
with mandible fixed, raises hyoid bone superiorly & anteriorly; depresses mandible |
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sphenoid bone: Greater wing |
contributes to the orbit of the eye |
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Lateral pterygoid |
protrude mandible by sliding condyle down & forward; produces grinding action |
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medial pterygoid |
elevation of mandible with masseter forms mandibular sling which straps mandible to skull |
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Masseter |
closes jaw |
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Transverse: Buccinators |
compresses lips & cheek against teeth |
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orbicularis oris |
closes mouth & pucker lips |
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Transverse: risorius |
assist in drawing mouth corner laterally |
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Angular: Zygomatic Major |
draws mouth angle superiorly & laterally (broad smile) |
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Angular: Levator Labii Superior |
elevates upper lip |
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Vertical: depressor anguli oris |
depress corner of lips; also assists to compress lips by drawing upper lip angle down |
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Vertical: mentalis |
wrinkle chin, pull lower lip out |
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Transverse |
course horizontally from origin & insert into orbicularis oris |
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angular |
approach corner of mouth obliquely from above or below |
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vertical |
enter corners of mouth from directly above or below |
