Anatomy & Histology · single question
When opening and closing on its own condylar (hinge) axis, which movement does the mandible make?
Show answer and explanation
Correct answer: A. Rotation
- A. CORRECT. The initial opening occurs as rotation (hinge movement) about the condylar axis in the lower joint compartment.
- B. INCORRECT. Translation is the gliding of the condyle, occurring in wider opening, not pure hinge motion.
- C. INCORRECT. Protrusion is a forward glide, not hinge rotation.
- D. INCORRECT. Retrusion is a backward movement, not the hinge opening described.
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