Muscles of The Head and Neck
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Created by:
Melissa_Harsh on November 4, 2010
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Description:
Action Origin Insertion
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16 terms
Latin | English |
|---|---|
| Occipitofrontalis: Frontal Belly |  O: Epicranial aponeurosis I: Skin of eyebrow and bridge of nose A: Raises eyebrows, wrinkles forehead (Suprise face) |
| Occipitofrontalis: Occipital Belly | O: Epicranial aponeurosis I: Epicranial aponeurosis A: Tenses and retracts scalp |
| Temporoparietalis | O: Fascia around external ear I: Epicranial aponeurosis A: Tenses scalp, moves auricle of ear (Wiggle your ears-if talented) |
| Temporalis | O: Along temporal lines of the skull I: Coronoid process of mandible A: Elevates mandible |
| Zygomaticus Major | O: Zygomatic bone near zygomaticomaxillary structure I: Angle of mouth A: Retracts and elevates corners of mouth (Smile) |
| Orbicularis Oculi | O: Median margin of orbit I: Skin around eyelids A: Closes eye |
| Orbicularis Oris | O: Maxilla and mandible I: Lips A: Compresses, purses lips |
| Masseter | O: Zygomatic arch I: Lateral surface of mandibular ramus A: Elevates mandible and closes the jaw |
| Platysma | O: Superior thorax between cartilage of second rib and acromion of scapula I: Mandible and skin of cheek A: Tenses skin of neck; depresses mandible |
| Sternocleidomastoid | O: Two bellies: clavicular head attaches to the sternal end of clavicle; sternal head attaches to manubrium I: Mastoid process A: Together: flexes the neck Alone: bends head toward shoulders and turns face to opposite side (roation-shake head no) |
| Buccinator | O: Alveolar process of maxilla and mandible I: Blends into fibers of orbicularis oris A: Compresses cheeks |
| Nasalis | O: Maxilla and alar cartilage of nose I: Bridge of nose A: Compresses bridge, depresses tip of nose; elevates corners of nostrils. (Flares nose, Wrinkles nose) |
| Medial Pterygoid | O: Pterygoid process of the sphenoid bone I: Ramus and condylar process of mandible on medial side A: Elevates the mandible and closes the jaw, or performs lateral excursion |
| Lateral Pterygoid | O: Pterygoid process of the sphenoid bone I: Ramus and condylar process of mandible on medial side A: Opens jaw, protrudes mandible , or performs lateral excursion |
| Digastric | O: Anterior belly: Inferior surface of mandible at chin Posterior belly: Mastoid region of temporal bone I: Hyoid bone A: Depresses mandible elevates larynx |
| Omohyoid | O: Superior border of scapula near scapular notch I: Hyoid bone A: Depresses hyoid bone and larynx |
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