Human Anatomy: Muscle Groups

Human Anatomy

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Muscle Function & Other Pertinent Medical Information
ORIGIN: Deep head medial side of lateral pterygoid plate and fossa between medial and lateral plates . Superficial head : Tuberosity of maxilla and pyramidal process of palatine bone
INSERTION: Medial aspect of angle of mandible
ACTION: Elevates, protracts and laterally displaces mandible to opposite side for chewing
NERVE: Nerve to medial pterygoid (main trunk of mandibular nerve (V))

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