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Bones of the skull which permit free movement are all except:

 # Bones of the skull which permit free movement are all except:
(a) Mandible
(b) Malleus
(c) Incus
(d) Vomer



The correct answer is D. Vomer.

The vomer is involved in all three types of Le Fort fractures of midfacial skeleton. The vomer is paper thin. A transverse fracture of vomer due to direct blow on the nose leads to deviated nasal septum (DNS).

Reference: TEXTBOOK OF ANATOMY HEAD, NECK AND BRAIN, Volume III, 2nd Edition Vishram Singh, Page No. 40

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