Balance Flashcards
Which part of the ear is responsible for balance?
c) Inner ear
What is the primary function of the semicircular canals?
c) Stabilize gaze during head movements
Which organ is responsible for balance during linear acceleration in the horizontal plane?
c) Utricle
What is the sensory organ in the semicircular canals?
a) Crista
What condition is caused by otoconia dislodgement into the semicircular canals?
c) Benign paroxysmal positional vertigo (BPPV)
Which semicircular canal is most commonly affected in BPPV?
b) Posterior
What test is used to diagnose posterior canal BPPV?
b) Dix-Hallpike test
What is the hallmark symptom of Meniere’s disease?
b) Triad of tinnitus, vertigo, and fluctuating hearing loss
What does the utricle detect?
b) Linear acceleration in the horizontal plane
What structure connects the cochlea to the vestibular system?
a) Vestibule
Which test evaluates the function of the utricle and saccule?
b) VEMP
What is the cause of vestibular neuronitis?
a) Viral infection
Which condition involves the destruction of the vestibular nerve due to a tumor?
a) Vestibular schwannoma
In Meniere’s disease, what leads to increased pressure in the inner ear?
b) Excessive endolymph production
What does the Epley maneuver treat?
c) BPPV
What tool cancels the brain’s control of eye movement during examination?
d) Frenzel goggles
Which investigation measures the electrical activity in the cochlea?
c) ECoG
What is the triad of symptoms in Meniere’s disease?
a) Tinnitus, vertigo, and sensorineural hearing loss
Which test objectively assesses the vestibulo-ocular reflex (VOR)?
b) vHIT
What causes nystagmus?
a) Dysfunction of the semicircular canals
A 35-year-old patient presents with vertigo triggered by head movement lasting seconds. What is the likely diagnosis?
a) BPPV
What is the first step in diagnosing balance disorders?
a) History taking
A patient with Meniere’s disease is advised to reduce which dietary component?
b) Salt
Which investigation uses cold water to stimulate the vestibular system?
c) Caloric test