The tympanic membrane

(1) Is composed of connective tissues covered with skin outside and with mucus membrane inside

(2) Is composed of connective tissue with mucus membrane outside and skin inside

(3) Is composed of connective tissue with mucus membrane on both the side

(4) Is composed of connective tissue with skin on both the side

(1) An ear ossicle

(2) Present in middle ear

(3) Situated in between Malleus and Stapes

(4) Increases the efficiency of transmission of light waves to the inner ear

(1) Malleus, Incus and Stapes

(2) Ear ossicles increase the efficiency of transmission of sound waves to the inner ear.

(3) Malleus is attached to the tympanic membrane of cochlea

(4) Stapes is attached to the oval window of the cochlea

(1) Air filled inner segment

(2) Made up of two parts: Bony and Membranous

(3) Membranous labyrinth encloses bony labyrinth

(4) Membranous labyrinth is surrounded by endolymph

(1) Bony labyrinth- series of channels

(2) Inside of bony labyrinth- membranous labyrinth

(3) Bony labyrinth- surrounding fluid is perilymph

(4) Coiled portion of labyrinth-Cochlea

(1) Perilymph

(2) Endolymph

(3) Otolymph

(4) Cystolymph

(1) (1) Scala media

(2) (1) Scala tympani

(3) (2) Scala tympani

(4) (2) Scala vestibuli

(1) It acts as an optic receptor

(2) Its basal part is in contact of efferent nerve fibres

(3) Stereo cilia are projected from apical part of each hair cell

(4) It is arranged in columns in internal part of organ of corti

(1) Three in number

(2) Lie in different planes

(3) Perpendicular to each other

(4) All of these

(1) Semicircular canals

(2) Tectorial canals

(3) Basilar canals

(4) Reissner's canals