Muscles of Facial Expression
About this set
Created by:
SacredMidnight on March 15, 2011
Subjects:
Description:
O = Origin
I = Insertion
A = Action
NS = Nerve Supply
Order by
9 terms
Terms | Definitions |
|---|---|
 Epicranius (frontal belly) | O- Galea Aponeurotica I- Skin of eyebrows & root of nose A-Raises Eyebrow NS-Facial Nerve |
| Epicranius (occipital belly) | O- Occipital & Temporal Bone I- Galea Aponeurotica A-Fixes aponeurotica and pulls scalp posteriorly NS- Facial Nerve |
| Corrugator Supercilii | O-Arch of front bone above nasal bone I- Skin of eyebrow A- Draws eyebrow together and inferiorly NS: Facial Nerve |
| Orbicularis Oculi | O-Frontal and Maxillary bones and ligaments around orbit I-Tissue of eyelid A-closes eye NS-Facial Nerve |
| Zygomaticus | O-Zygomatic Bone I-Skin and muscle at corner of mouth A-Raises lateral corners of mouth upward (smiling) NS-Facial Nerve |
| Risorius | O-Lateral fascia associated with masseter muscle I-Skin at angle of mouth A-Draws corner of lip laterally NS-Facial Nerve |
| Orbicularis Oris | O-Arises indirectly from maxilla and mandible I-Encircles mouth; inserts into muscle and stem at angles of mouth A-Closes lips (kissing) NS-Facial Nerve |
| Buccinator | O-Molar region of maxilla and mandible I-Orbicularis Oris A-Compresses cheek (whistling/sucking) NS-Facial Nerve |
| Platysma | O-Fascia of Chest (over pecs and deltoid muscles) I-Lower margin of mandible and skin and muscle at corner of mouth A-tenses skin of neck NS-Facial Nerve |
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