Postitional veigo is: (A) Lateral, (B) Superior, (C) Inferior, (D) Posterior
Answer is D. The disease is caused by the disorder of posterior semicircular canal. Otoconial debris when settles in the cupula of the posterior semicircular canal in a critical head position causes displacement of cupula and veigo. (Ref: Diseases of EAR, NOSE AND THROAT by PL DHINGRA - 6th Edition)