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Head & Neck Muscles
Muscles of head and neck with action and innervation.
| Muscle | Action | Innervation |
|---|---|---|
| Frontalis M. | Pulls eyelids and eyebrows up (look surprised) | (blank) |
| Procerus M. | Wrinkles root of the nose | (blank) |
| Corrugator supercilii M. | Arching of eyebrows (stuck-up) | (blank) |
| Orbicularis Oculi M. | Closes eyelids (sphincter), supports skin around eye | (blank) |
| Nasalis M. | Pulls ala open by dilating nares fibers | (blank) |
| Levator Labii superioris alaegue nasii M. | Elevates upper lip at sides of nose | (blank) |
| Zygomaticus minor & major M. | Retracts and raises lip upward & backward (smiling). | (blank) |
| Levator labii superioris M. | Snarling-- Elvis impression | (blank) |
| Risorius M. | Grinning -- pulls edges of mouth back | (blank) |
| Depressor angular inferioris M. | Frowning | (blank) |
| Depressor labii inferioris M. | Inferior depressor of the angle of the mouth (pouting). | (blank) |
| Mentalis M. | Protects and tightens skin of chin. | (blank) |
| Orbicularis Oris M. | Keeps food in mouth, protrudes lips for kissing. | (blank) |
| Platysma M. | Grimacing, tenses skin of inferior face and neck. | (blank) |
| Buccinator M. | Controls cheeks, puffs in and out. | (blank) |
| Temporalis M. | Attaches at coronoid process. Elevates mandible and closes jaw | V3 (Trigeminal --> Madibular) |
| Masseter M. | Closes jaw = elevates mandible | V3 |
Created by:
ssherwo
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