Term
|
Definition
1. Raises and protrudes lower lip.
2. Expresses doubt or disdain.
3. Assists in drinking.
4. Raises chin. |
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Term
|
Definition
1. Mastication pulls angle of mouth laterally and shortens cheek both vertically and horizontally.
2. Assists in keeping food pushed back on occlusal surfaces.
3. Whistling, chewing, trumpet muscle. |
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Term
| Orbicularis Oris Function |
|
Definition
1. Pressing together (closes and protrudes lips.
2. Tightening and thinning (pursing lips)
3. Rolling inward between the teeth (grimacing)
4. Thrusting outward (pouting and kissing) |
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Term
| Depressor Anguli Oris Function |
|
Definition
| Depresses angle of mouth (sadness) |
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Term
| Depressor Labii Inferioris |
|
Definition
1. Depresses lower lip.
2. Works with mentalis to pull down lip. |
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Term
|
Definition
| Widens mouth when person is smiling widely. (grimace) |
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Term
| Levator Anguli Oris Function |
|
Definition
| Elevates the angle of the mouth (smiling) |
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Term
|
Definition
| Elevates the angle of the upper lip and pulls it laterally when smiling. |
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Term
| Zygomaticus Minor Function |
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Definition
| Elevates the upper lip, assists in smiling. |
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Term
| Frontal portion of Epicranius Function |
|
Definition
| Raising the eye brow (surprise) |
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Term
| Occipital portion of Epicranius Function |
|
Definition
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Term
|
Definition
| Light closure of eyelid, winking. |
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Term
|
Definition
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Term
|
Definition
| Draws skin of forehead medially downward above. Produces vertical wrinkles, frowning. |
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Term
|
Definition
| Draws down medial angle of eyebrows, transverse wrinkles. |
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Term
| Levator Labii Superioris Function |
|
Definition
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Term
| Levator Labii Superioris Alaeque Nasi Function |
|
Definition
| Elevates upper lip (dilating nostrils in a sneer) |
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Term
| Transverse and Alar of Nasalis Function |
|
Definition
| Contracts and dilates nasal openings, widening and flattening of nose. |
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Term
| What branch do the muscles of facial expression arise from? |
|
Definition
| Branchial arch #2 (Hyoid) |
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Term
| What nerve innervates the muscles of facial expression? |
|
Definition
| Cranial Nerve #7 Facial Nerve |
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Term
| Origin and Insertion of Mentalis |
|
Definition
O: Mandible near midline.
I: In the skin tissue of chin (orbicularis oris) |
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Term
| Origin and Insertion of Buccinator |
|
Definition
O1: Alveolar processes of maxilla and mandible
O2: Pterygomandibular raphe
I: Angle of the mouth |
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Term
| Origin and Insertion of Orbicularis Oris |
|
Definition
O: Fascia surrounding mouth.
I: Angle of mouth |
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Term
| Origin and Insertion of Depressor Anguli Oris |
|
Definition
O: Lower border of mandible, external oblique line.
I: Angle of mouth. |
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Term
| Origin and Insertion of Depressor Anguli Oris |
|
Definition
O: Lower border of mandible, external oblique line.
I: Angle of mouth. |
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Term
| Origin and Insertion of Depressor labii inferioris |
|
Definition
O: Lower border of the mandible (external oblique line of mandible)
I: Medial and superior into the sking of the lower lip. |
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Term
| Origin and Insertion of Risorius |
|
Definition
O: Fascia superficial to the masseter (Near parotid gland)
-Opposite of Max. 1st molar (salivary)
I: Skin tissue at the angle of the mouth. |
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Term
| Origin and Insertion of Levatore Anguli Oris |
|
Definition
O: Canine fossa below infraorbital foramen.
I: Angle of mouth. |
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Term
| Origin and Insertion of Levatore Anguli Oris |
|
Definition
O: Canine fossa below infraorbital foramen.
I: Angle of mouth. |
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Term
| Origin and Insertion of Zygomaticus Major |
|
Definition
O: Zygomatic bone, lateral to the zygomaticus minor.
I: Angle of mouth |
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Term
| Origin and Insertion of Zygomaticus Minor |
|
Definition
O: Zygomatic bone
I: Angle of mout, mingling with orbicularis oris, inserts lateral to levator labii superioris. |
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Term
| Origin and Insertion of Frontal portion of Epicranius |
|
Definition
O: Galea aponeurotica
I: Skin tissue of the eyebrow and root of the nose. |
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Term
| Origin and Insertion of the occipital portion of the epicranius |
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Definition
O: Mastoid process of temporal bone and occipital.
I: Galea aponeurotica. |
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Term
| Origin and Insertion of Levator Labii Superioris |
|
Definition
O: Infraorbital rim of the maxilla.
I: Skin tissue of the upper lip. |
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Term
| Origin and Insertion of Levator Labii Superioris Alaeque Nasi |
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Definition
O: Frontal process of the maxilla.
I: Ala of nose and upper lip. |
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