The secondary tympanic membrane is present over: (A) Round window, (B) Oval window, (C) Lateral wall of middle ear, (D) Scala media
Answer is A. Round window (present on the medial wall of the middle ear) is covered by the secondary tympanic membrane.Other structures present on the medial wall of the middle ear are:1.Promontory 2.Bony lateral semicircular canal 3.Oval window and 4.Facial nerve canalRef: Hazarika; 3rd ed; Pg 16