Term
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Definition
Origin: Sternum and Clavicle Insertion: Mastoid process Action: Tilts head side t side or tilts head downward |
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Term
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Definition
Origin: Maxilla and Frontal Bones Insertion: Dermis near orgin Action: Closes Eye |
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Term
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Definition
Origin: Bridge of Nose Insertion: Frontalis Muscle Action: Wrinkles between eyes |
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Term
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Definition
Orgin: Maxilla Insertion: Bridge and ala of nose Action: Flares nostrils |
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Term
Levator labii superioris group |
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Definition
Origin: Maxilla Insertion: Skin, Orbicularis Oris, upper lip Action: Elevates upper lip |
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Term
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Definition
Origin: Platysma and Masseter Fascia Insertion: Orbicularis Oris; corners of mouth Action: Widens mouth |
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Term
Zygomaticus major and minor |
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Definition
Origin: Zygomatic bone Insertion: Angle of mouth and Orbicularis Oris Action: Lifts corners of mouth |
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Term
| Frontalis or occipitofrontalis |
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Definition
Origin: Occipital bone Insertion: Skin of eyebrow and nose Action: Elevates eyebrows; moves scalp |
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Term
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Definition
Origin: Mandible and Maxilla
Insertion: Fascia or muscles of the lips
Action: Closes lip as in making an “O”. |
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Term
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Definition
Origin: Posterior Mandible and Maxilla
Insertion: Orbicularis oris
Action: Puckers lips |
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Term
Depressor Labii Inferioris |
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Definition
Origin: Lateral body of Mandible
Insertion: skin and muscle of lower lip
Action: Assists frowning |
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Term
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Definition
Origin: Mandible near incisors
Insertion: Skin of chin Action: Wrinkles chin and protrudes lower lip |
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Term
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Definition
Origin: Body of mandible below incisors
Insertion: skin at angle of mouth
Action: Frowning |
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Term
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Definition
Origin: Temporal fossa Insertion: Mandibular ramus and coronoid process Action: Elevates and protracts mandible |
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Term
Lateral Pterygoid helps open the jaw |
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Definition
Lateral Ptyerygoid Origin: lateral side of lateral pterygoid, greater wing of sphenoid Insertion: Mandibular condyle Action: Opens jaw |
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Term
Medial Pterygoid helps close the jaw |
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Definition
Medial Pterygoid Origin: medial side of lateral pterygoid, palatine and maxilla Insertion: Lower angle of mandible Action: Closes jaw |
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Term
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Definition
Origin: Fascia of chest Insertion: Lower margin of mandible Action: Tightens neck |
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Term
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Definition
Origin: lower margin of mandible and mastoid process
Insertion: Loop above hyoid bone
Action: elevates hyoid and opens mouth |
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Term
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Definition
Origin: lower margin of mandible and mastoid process
Insertion: Loop above hyoid bone
Action: elevates hyoid and opens mouth |
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Term
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Definition
Origin: Styloid Process Insertion: Hyoid Bone Action: Elevates hyoid |
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Term
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Definition
Origin: Styloid Process Insertion: Tongue Action: Retracts Tongue |
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Term
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Definition
Origin: Mylohyoid line of mandible Insertion: Hyoid bone Action: Elevates floor of mouth |
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Term
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Definition
Origin Chin Insertion: Tongue Action: Depresses and protrudes tongue |
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Term
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Definition
Origin: Chin Insertion: Hyoid bone Action: Depresses mandible; protracts hyoid |
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