Which of the following is not a part of external ear?

(1) Pinna

(2) Auditory Meatus

(3) Auditory canal

(4) Tympanic membrane

(1) Pinna

(2) Meatus

(3) Both A and B

(4) 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) Connects middle ear to pharynx

(2) Connects internal ear to external ear by means of pharynx

(3) Equalises the pressure on either side of pharynx

(4) Both B and C

(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) The bony labyrinth is a series of channels.

(2) The membranous labyrinth is filled with a fluid called endolymph

(3) Bony labyrinth is surrounded by a fluid called perilymph.

(4) The coiled portion of the labyrinth is called cochlea.

(1) Perilymph

(2) Endolymph

(3) Otolymph

(4) Cystolymph

(1) Basilar membrane

(2) Reissner's membrane

(3) Tectorial Membrane

(4) Both B and C