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Vertigo

Rotational head movements cause the fluid in the cupula of the semicircular canal to bend the hair cells. The hair cells, in turn, send a signal to your brain that you are experiencing motion. Vertigo can occur when these hair cells are still sending signals of motion, even though you may be perfectly still, giving you the illusion of movement.

Vertigo

Review Date: 5/13/2019

Reviewed By: Linda J. Vorvick, MD, Clinical Associate Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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