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MSC Facial Muscles
MSC 241 - Facial Muscles
Question | Answer |
---|---|
Buccinator Muscle | Compresses the cheek, retracts angle of mouth, draws corner of mouth laterally. Assists in mastication. Trumpeter |
Corrugator Muscle | Draws the eyebrows inferiorly and medially. Wrinkles skin of forehead. Frowning |
Depressor Angulus Oris/Triangularis Muscle | Depresses angle of mouth. Draws angle of mouth laterally & inferiorly. Open mouth |
Depressor Labii Inferioris/Quadratus Muscle | Draws inferior lip inferiorly and slightly laterally |
Diagastricus Muscle | Draws hyoid bone anteriorly & posteriorly. Elevates hyoid bone and depresses mandible, Open mouth |
Levator Anguli Oris | Elevates angle of mouth. Draws angle of mouth laterally & superiorly. |
Levator Labii Superioris Alaeque Nasi Muscle | Elevates the superior lip, dilates the nostrils. |
Levator Labii Superioris Muscle | Elevates and extends superior lip |
Levator Palpebrae Superioris Muscle | Raises the superior eyelid. Open eye |
Masseter Muscle | Closes mandible; mastication. Close mouth |
Mentalis Muscle | Elevates and protrudes the inferior lip, wrinkles the skin over the chin. Pouting |
Occipitofrontalis Muscle | Epicranius; draws the scalp posteriorly and anteriorly and raises the eyebrows. Surprise |
Orbicularis Oculi Muscle | Closes the eyelid; compresses the lacrimal sac. Crying |
Orbicularis Oris Muscle | Closes & protudes the lips. Kissing |
Platysma Muscle | Wrinkles the skin of the neck and chest, depresses the mandible and inferior lip. Pouting |
Procerus Muscle | Draws the skin of the forehead inferiorly. Concentrating |
Quadratus Labii Superioris Muscle | Raises the wings of the nose, deepens the nasolabial sulcus. |
Risorius Muscle | Draws the angle of the mouth anteriorly & laterally. Grimacing |
Sternocleidomastoid/SCM Muscle | Rotates and depresses the head. Nodding |
Temporalis Muscle | Closes the mandible; mastication and is the strongest chewing muscle. |
Zygomaticus Major Muscle | Draws the superior lip posteriorly, superiorily, and anteriorly. Smiling |
Zygomaticus Minor Muscle | Draws superior lip superiorly and anteriorly. Raises upper lip, exposes teeth. Dog growling |