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Cards In This Set
| Front | Back |
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What is the point of origin for the masseter?
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origin on zygomatic arch
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What is the insertion of the masseter?
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Insertion of the masseter is on the coronoid process and the lateral surface of angle and ramus of mandible
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Which two muscles protact and elevate the mandible?
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The medial pterygoid and masseter both elevate and protract the mandible
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Which muscle is the prime mover of jaw closure?
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The masseter is the prime mover of jaw closure
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This muscle protracts the mandible and produces its side to side movement
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The medial pterygoid
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The temporalis' origin is on which bone?
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The parietal bone, specifically on the superior and inferior temporal lines
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These two muscles have insertions on the coronoid process of mandible
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Temporalis
Masseter
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True or False
The temporalis elevates and protracts the mandible
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False. The temporalis elevates and retracts the mandible
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What action does the lateral pterygoid perform?
Name its origin and insertion
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The lateral pterygoid protacts mandible and produces its side-to-side movement
Origin: Greater wing of spenoid and lateral surface of lateral pterygoid plate
Insertion: Condylar process of Mandible
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Name the insertion and origin of the medial pterygoid
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Origin: superficial head's origin: tuberosity of maxilla, palatine, and deep head: medial surface of lateral pterygoid plate
Insertion: Medial surface of mandibular ramus
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Muscles of mastication are innervated by the mandibular division of which nerve?
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CN V (trigeminal nerve)
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