Temporalis Insertion — MFDS Part 1 MCQ
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Correct answer: A — Coronoid process
The correct answer is A, the coronoid process. The temporalis tendon passes deep to the zygomatic arch and attaches principally to the coronoid process, with fibres extending onto the adjacent anterior border of the mandibular ramus. Contraction elevates the mandible, while the predominantly horizontal posterior fibres assist retrusion. The condylar region is associated principally with lateral pterygoid attachment rather than the main temporalis insertion. The angle of the mandible is an important insertion site for the masseter and medial pterygoid. The mental protuberance does not receive temporalis fibres, and the mandibular notch is the depression between the coronoid and condylar processes rather than the principal insertion site.
Reference: Yu SK, Kim TH, Yang KY, Bae CJ, Kim HJ. Morphology of the temporalis muscle focusing on the tendinous attachment onto the coronoid process. Anatomy & Cell Biology. 2021;54(3):308-314. https://pubmed.ncbi.nlm.nih.gov/34353976/