Essential Questions About Ear in ENT

It is crucial to understand the anatomy, physiology, and pathology of the ear for medical students preparing for exams like NEET PG, INI-CET, or FMGE. As ENT is a high-yield subject, you need to strengthen your grasp on detailed yet fundamental concepts related to the ear.

In this blog, we have compiled a comprehensive list of essential questions about the ear. You’ll get everything here, ranging from the anatomy of the cochlea to clinical scenarios involving hearing loss and facial nerve palsy.

These questions are sure to help you revise key topics efficiently and prepare for your upcoming exams with confidence.

Let’s take a look at these must-know ENT questions to strengthen your preparation!

Questions on Ear Anatomy and Functions

Q. Duct of cochlea connecting with subarachnoid space?

Ans. Aqueduct of cochlea

Q. Endolymphatic duct is formed by?

Ans. Utricular duct and saccular duct

Q. Cochlear duct?

Ans. Scala media

Q. Cochlear duct is connected to saccule by?

Ans. Ductus reuniens

Q. Scala media is separated from Scala tympani by?

Ans. Basilar membrane

Q. Scala media is separated from Scala vestibuli by?

Ans. Reissner's membrane

Also read: Essential One-Liners in ENT: Key Facts, Diagnoses & Treatments

Q. A collaural fistula is an anomaly of which arch?

Ans. 1st arch

Q. Correction of deformities of EAC is done at what age?

Ans. 5 to 7 years

Q. The vertical crest at the internal auditory canal is:

Ans. Bills bar

Q. Stapes develop from?

Ans. Mesoderm

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Q. Inner ear is present in which bone:

Ans. Petrous part of temporal bone.

Q. What is Crus commune?

Ans. It is a communication between superior scc and posterior scc (non-ampullated ends).

Q. Number of turns made by the cochlea?

Ans. 2 ½ - 2 ¾

Q. Intrauterine hearing starts at what period of gestation?

Ans. 20 weeks

Q. Angular movements are sensed by?

Ans. Crista Ampularis

Q. Stapes movement causes vibration in?

Ans. Scala vestibuli

Q. Fluid having highest potassium and low sodium content is?

Ans. Endolymph

Also read: INI-CET High Yield Questions for ENT

Q. Fluid having higher sodium and low potassium content is?

Ans. Perilymph

Q. Cartilaginous portion of EAC is?

Ans. Lateral

Q. Communications causing infections from the parotid gland?

Ans. Fissure of Santorini, foramen of Huschke

Q. Other names for pars flaccida?

Ans. Sharpneil's membrane

Q. Most mobile portion of tympanic membrane?

Ans. Peripheral part

Q. Total surface area and effective vibratory area of TM?

Ans. TSA = 10 x 9 = 90 mm2

Effective vibratory area is half of TSA of TM = 45mm2

Q. Arnold's nerve?

Ans. Auricular branch of X nerve

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Q. Jacobson's nerve is?

Ans. Tympanic branch of IX nerve.

Q. Cough reflex is mediated by?

Ans. Arnold’s nerve

Q. Nerve supply of TM

Ans. Auriculotemporal nerve & Arnold’s nerve = Lateral aspect

Glossopharyngeal nerve = Medial aspect

Q. Nerves responsible for referred otalgia?

Ans. 5th Nerve, 9th Nerve & 10th Nerve

Q. Stapedius is supplied by?

Ans. 7th Nerve

Q. Tensor Tympanii is supplied by?

Ans. 5th Nerve

Q. Suppose a patient has perforation of the tympanic membrane. How is the assessment of the vestibular system carried out?

Ans. Dundas Grant test.

Q. Suppose a patient has a congenital absence of pinna. How is the assessment carried out?

Ans. Barany's Rotational Chair test.

Also read: Auditory Processing Disorder: Causes, Symptoms, Risk Factors

Q. Which is the most common type of brain abscess?

Ans. Temporal lobe abscess

Q. Which lobe is most generally involved?

Ans. Temporal lobe

Q. Ring sign on MRI scan is seen in?

Ans. Temporal lobe abscess (middle cranial fossa)

Q. Ring sign seen in posterior cranial fossa?

Ans. Cerebellar abscess

Q. What are the major causes of recurrent facial nerve palsy?

Ans. Melkersson-Rosenthal syndrome, diabetes, sarcoidosis, and tumours.

Q. First Branch of facial nerve ____.

Ans. Greater superficial petrosal nerve

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Q. Nerve involved in hyperacusis____.

Ans. Nerve to stapedius.

Q. Lacrimation is affected when the facial nerve is injured at______ level.

Ans. Supra genicular.

Q. Taste is affected when the facial nerve is injured at______ level.

Ans. Infra stapedial

Q. Most common cause for facial nerve palsy

Ans. Trauma

Q. Iatrogenic facial palsy occurs and is observed commonly in surgery.

Ans. Parotid

Q. Facial nerve segment affected in ischemia and oedema.

Ans. Labyrinthine.

Q. Which segment of the facial nerve is affected first in ischemia and edema?

Ans. Labyrinthine segment

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Q. Which segment of the facial nerve is affected first in iatrogenic trauma?

Ans. Second Genu

Q. Which fracture of petrous bone is responsible for facial nerve injury

Ans. Transverse Fracture

Q. Crocodile tears occur due to faulty reinnervation with

Ans. Chorda tympani nerve

Q. Which is common?

Ans. Longitudinal Fracture – Tympanic membrane perforation

Q. TM perforation occurs commonly in?

Ans. Longitudinal Fracture

Q. Facial nerve palsy higher in?

Ans. Transverse Fracture

Q. CHL in?

Ans. Longitudinal Fracture

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Q. SNHL in?

Ans. Transverse Fracture

Q. CSF otorrhea?

Ans. Longitudinal Fracture

Q. CSF rhinorrhea?

Ans. Transverse Fracture

Q. In a case of bilateral profound hearing loss, the best method to rehabilitate is:

Ans. Cochlear implant

Q. A 3-year-old child has been diagnosed as bilateral moderate sensorineural hearing loss. The best way for rehabilitation is:

Ans. Hearing aid

Q. Cochlear implant converts which energy into which energy?

Ans. Converts sound energy into electrical energy.

Q. What is the ideal time for treatment of hearing loss in infants?

Ans. As Early as Possible

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Q. BAHA is used in which clinical scenario:

Ans. External/middle ear abnormality, unilateral severe to profound sensorineural hearing loss.

Q. Electrode of cochlear implant stimulates:

Ans. Auditory Nerve

Q. In cochlear implant electrodes are placed through:

Ans. Round window to Scala tympani

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