The effective diameter of the tympanic membrane is
Effective diameter or vibratory area of tympanic membrane is 45mm2; Area of tympanic membrane is 90mm2 Stapes footplate area is 3.2mm2 Ref: PL Dhingra 6th edition of Ear, Nose and Throat; pg no 15
25 mm2
30 mm2
40 mm2
45 mm2
Ear