TMJ Articulation — MFDS Part 1 MCQ
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Correct answer: E — Temporal bone
The correct answer is E, the temporal bone. The cranial component of the temporomandibular joint is formed by the mandibular fossa and articular eminence of the temporal bone; the mandibular condyle forms the mandibular component, with an articular disc interposed. The zygomatic bone contributes to the zygomatic arch but does not provide the TMJ articular surface. The sphenoid is adjacent to the infratemporal region but does not form the joint. The maxilla supports the upper dentition, while the frontal bone forms the forehead and part of the orbital roof; neither participates in the TMJ.
Reference: University Hospitals of North Midlands NHS Trust, Temporomandibular Joint Disorder: Patient Information Leaflet, section 'What is the TMJ Temporomandibular joint?', reapproved 2025. https://www.uhnm.nhs.uk/media/ndcomodo/tmj-leaflet-aug-2025-new-template.pdf