TEMPORALIS MUSCLE
Origin : Entire temporal fossa (along inferiors temporal line)Insertion : Coronoid process (along apex, anterior and posterior border)
Action : Elevate & Retrude mandible
Nerve Supply : Temporal branch of mandibular division of CNV
MASSETER MUSCLE
Origin : Zygomatic Arch (medial &inferior border)
Insertion : Angle of mandible, Inferior & lateral part of ramus
Action : Elevate mandible
Nerve Supply : Masseteric branch of mandibular division of CNV
Nerve Supply : Masseteric branch of mandibular division of CNV
LATERAL PTERYGOID MUSCLE
Origin : Lateral surface of lateral pterygoid plate, Greater wing of sphenoid
Insertion : Neck of condyle (pterygoid fovea), Articular disc & capsule of TMJ
Action : Depress, Protrude & Lateral excursion of mandible
Nerve Supply : Lateral pterygoid branch of mandibular division of CNV
Nerve Supply : Lateral pterygoid branch of mandibular division of CNV
MEDIAL PTERYGOID MUSCLE
Origin : Medial surface of lateral pterygoid plate, Palatine (pyramidal process)
Insertion : Medial surface of ramus, Angle of mandible
Action : Elevate, Protrude & Lateral excursion of mandible
Nerve Supply : Medial pterygoid branch of mandibular division of CNV
Video Clip of Face/Mouth during Movement of the Jaws in All Directions
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Nerve Supply : Medial pterygoid branch of mandibular division of CNV
Video Clip of Face/Mouth during Movement of the Jaws in All Directions
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