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4 Cards in this Set
- Front
- Back
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Temporalis m.
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O: Temporal fossa
I: Coronoid process and ramus of Mandible Innervation: Trigeminal (V3) Action: Closes and retracts the jaw |
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Masseter m.
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O: Lower border and medial surface of Zygomatic arch
I: Lateral surface of coronoid process, ramus and angle of Mandible Innervation: Trigeminal (V3) Action: Closes (supf. part) and retracts (deep part) jaw |
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Lateral Pterygoid m.
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O: Sup. Head from infratemporal surface of sphenoid, inf. head from lateral surface of lateral pterygoid plate
I: Neck of mandible, temporomandibular joint Innervation: Trigeminal (V3) Action: Opens jaw (sup. head) and protracts jaw (inf. head) |
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Medial Pterygoid m.
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O: Superficial head from tuber of maxilla, deep head from medial surface of lateral pterygoid plate and pyramidal process of palatine bone
I: Medial surface of angle and ramus of mandible Innervation: Trigeminal (V3) Action: Closes and protracts jaw |
