The temporalis originates at:
  1. Floor of temporal fossa
  2. Coroniod process
  3. Infratemporal surface of sphenoid greater wing
  4. Medial surface of ramus
Explanation
Answer: A - The temporalis originates at the floor of the temporal fossa, the deep surface of temporal fascia. Insertion point is the coroniod process and anterior border of mandibular ramus. Functionally, it elevates and retrudes the mandible.
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