A nursing instructor is teaching pre-nursing students in a pathophysiology class. What would the instructor teach the students about Ménière's disease?
A) It is referred to as endolymphatic hydrops.
B) It originates in the middle ear.
C) It is referred to as lymphatic hydrops.
D) It originates in the outer ear.
A
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When a person moves his or her head, the endolymph also moves, and nerve receptors within the membranous labyrinth send signals to the brain about the movement. In Ménière's disease, an increase in endolymph causes the membranous labyrinth to dilate like a balloon; this is referred to as endolymphatic hydrops. Ménière's disease does not originate in either the middle or the outer ear, and it is not referred to as lymphatic hydrops.
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