Term
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Definition
- Muscle of the face
- Principal muscle of th lips
- Function: close the mouth and pucker the lips
- Important for the articulation of certain speech sounds
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Term
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Definition
- Also called Bugler's muscle
- Principle muscle of the cheek
- Deepest facial muscle
- Origin: pterygomandibular raphe and alvelor portions of the maxillae and mandible
- Insertion: Orbicularis Oris
- Function: chewing, moving food onto molars; draws the mouth latterally and compresses the lips and cheeks against the teeth
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Term
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Definition
- Origin: posterior regio of the face
- parallel and superficial to the buccinator muscle
- Imsertion: the skin and mucosa that the corner of the mouth
- Function: contracts and retracts lips that the corners in a lateral direction (facilitates smiling)
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Term
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Definition
- Insertion: Mid-lateral region of the Orbicularis Oris
- Function: elevate the upper lip
- Elevators: Levator Labii Superion, Levator Labii Superior Alaque Nasal, Zygomatic Major, Zygomatic minor
- The Depressor Labii Inferior draws the lip downward and laterally
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