Question

Choose the wrong statement regarding human ear.

• A. Stapes is attached to tympanic membrane
• B. Eustachian tube connects middle ear cavity with pharynx
• C. Middle ear contains three ossciles
• D. Space within cochlea called scala media is filled with endolymph
• E. Membranous labyrinth is filled with a fluid called endolymph

Answer 1

The correct option is A Stapes is attached to tympanic membrane

Stapes is an ear bone or ossicle. There are three ear ossicles in the middle ear, malleus, incus and stapes. Malleus is attached to tympanic membrane or ear drum. Next to malleus, incus is present which is followed by stapes. Stapes is attached to the membrane of oval window or fenestra ovalis. Stapes strikes against oval window in back and forth direction to transmit the vibrations generated in tympanic membrane.

So, the correct answer is 'Stapes is attached to tympanic membrane'.