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Superficial muscles
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Question | Answer |
---|---|
Frontalis (Epicranius) Origin Insertion Action | Epicranial aponeurosis Skin of eybrow and bridge of nose Raises eyebrows, wrinkles forehead |
Masseter Origin Insertion Action | zygomatic arch and maxilla coronoid process and ramus of mandible chewing motion by contraction |
Buccinator Origin Insertion Action | Maxillary bone and mandible Blends into fibers of orbicularis oris Compress checks |
Zygomaticus Major Origin Insertion Action | anterior of zygomatic modiolus of mouth raises the corners of the mouth when a person smiles |
Zygomaticus Minor Origin Insertion Action | zygomatic bone malar bone and continues with orbicularis oculi on the lateral face of the Levator labii superioris and then inserts into the outer part of the upper lip draws the upper lip backward, upward, and outward skin of the upper lip |
Orbicularis Oculi Origin Insertion Action | Medial margin of orbit Skin around eyelids Closes eye |
Orbicularis Oris Origin Insertion Action | Maxillary bone and mandible Lips Compresses, purses lips |
Occipitalis Origin Insertion Action | Occipital bone Epciranial aponeurosis Tense and retracts scalp |