MEDICAL SURGICAL NURSING -II - ENT

Which part of the ear has no role to play in hearing but is very important?

• Ear ossicles

• Organ of Corti

• Eustachian tube

• Vestibular apparatus

It receives sound vibration and passes to the eardrum

• outer ear

• middle ear

• inner ear

• eustachian tube

The border between the middle and inner ear is formed by--------------

• incus

• oval window

• pinnae

• tympanic membrane

The Organ of Corti is present in -------------

• scala vestibuli

• scala tympani

• scala media

• none of the above

The membranous labyrinth contains ---------------

• Cystolymph

• Otolymph

• Perilymph

• Endolymph

Find the correct statement about the eustachian tube ----------

• connects internal ear to external ear

• it equalises pressure between middle ear and outer atmosphere

• connects middle ear to pharynx

• Both (b) and (c)

Find the correct statement about Inner ear --------------

• made up of bony and membranous segments

• membranous labyrinth encloses bony labyrinth

• endolymph surrounds membranous labyrinth

• air-filled inner segment

Find the incorrect match -----------

• Middle ear – amplifies sound waves

• Hair cells – present on basilar membrane

• Saccule and utricle – maintain static equilibrium

• Cristae – perform hearing function

The basilar membrane is present between ---------

• scala vestibule and scala media

• scala media and scala tympani

• both (a) and (b)

• scala vestibule and scala tympani

Which of the following describe cholesteatoma ---------------

• it consists of squamous epithelium

• it is a malignant tumor

• it should be left untreated

• it is mainly treated medicaly