QuestionSBA
QuestionChoice
This does not correctly describe BPPV. While otoliths do indeed dislodge from the utricle, they float around fluid-filled areas such as the semicircular canals in the inner ear. The middle ear is not involved.
10002009
c
Otoliths dislodge from the utricle and float around the middle ear
QuestionChoice
This is incorrect. BPPV involves otoliths dislodging from the utricle and floating around fluid-filled spaces such as the semicircular canals in the inner ear.
10002008
b
Otoliths dislodge from the semi-circular canals and float around the utricle
QuestionChoice
This description best describes the potential pathophysiology of Meniere's disease. The exact mechanisms that cause Meniere's disease are contested. It presents clinically as dizziness, vertigo, tinnitus and aural fullness.
10002010
d
Excessive pressure accumulation in the endolymph
QuestionChoice
This description best describes the pathophysiology of BPPV. BPPV is caused by the displacement of small calcium particles (otoliths) in the inner ear. These particles are normally located in the utricle within the inner ear. When they become displaced, they can move into the semicircular canals and cause abnormal signals to be sent to the brain, resulting in vertigo.
10002007
a
Otoliths dislodge from the utricle and float around the semi-circular canals
QuestionChoice
This description best describes the pathophysiology of a vestibular schwannoma. It is a benign tumour that carries a small risk of malignant transformation.
10002011
e
Development of a Schwann cell-derived tumour arising from the vestibulocochlear nerve
Concept
Chapter
2693
3999
Benign Paroxysmal Positional Vertigo (BPPV)
Topic
186
Ear, Nose and Throat
12948
Which of these best describes the pathophysiology of Benign Paroxysmal Positional Vertigo (BPPV)?
a