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Head Muscles

MuscleOriginInsertionAction
Occipotofrontalis Frontal belly: epicranial aponeurosis Occipital belly: occipital bone and mastoid process of temporal bone Frontal: skin superior to supraorbital margin Occipital: epicranial aponeurosis Frontal: draws scalp anteriorly, raises eyebrows Occipital: draws scalp posteriorly
Masseter maxilla and zygomatic arch angle and ramus of mandible elevates mandible
Temporalis temporal bone coronoid process and ramus of mandible elevates and retracts mandible
Digastric anterior belly: inner border of mandible posterior belly: temporal bone body of hyoid bone elevates hyoid and draws it posteriorly
Mylohyoid mandible hyoid depresses mandible
Sternohyoid sternum hyoid depresses hyoid
Sternothyroid sternum thyroid depresses thyroid
Thyrohyoid thyroid hyoid depresses hyoid
Sternocleidomastoid sternum and clavicle mastoid process of temporal bone flexes and rotates head