Stimulation of horizontal semicircular canal causes nystagmus in which directions ?: (A) Veical, (B) Horizontal, (C) Rotary, (D) Any of the three
Answer is B. Ans. is 'b' i.e., Horizontal The cupulae of the semicircular canals are stimulated by movement of endolymphatic fluid and each canal causes the nystagmus in its own plane :- Stimulation of horizontal SCC - 4 Horizontal nystagmus. Stimulation of superior SCC - 4 Rotary nystagmus. Stimulation of veical SCC - Veical nystagmus