Sea-sickness or motion-sickness results from
A)over stimulation of the tympanum.
B)continuous movement of the fluid of the semicircular canals.
C)plugging of the Eustachian tube.
D)damage to the auditory nerve.
E)a rupture of the oval window.

Question

Quizplus · Accepted Answer

Motion sickness is caused by continuous movement of the fluid in the semicircular canals of the inner ear, which sends confusing signals to the brain about the body's position and movement in space. Overstimulation of the tympanum (the eardrum) or damage to the auditory nerve would not cause motion sickness. Plugging of the Eustachian tube or rupturing of the oval window may affect hearing but are not directly related to motion sickness.

Sea-Sickness or Motion-Sickness Results from