The semicircular canals
A) are arranged in three perpendicular planes.
B) contain a thin basilar membrane.
C) are lined by long rows of hair cells along their entire length.
D) transmit vibrations from the oval window to the saccule.

Question

Quizplus · Accepted Answer

The semicircular canals are arranged in three perpendicular planes, which allows them to detect movement in any direction.

Answer: B
 The semicircular canals contain a thick, gelatinous structure called the cupula, which is attached to a thin basilar membrane.

Answer: C
 The semicircular canals are lined by hair cells that detect movement of the endolymph fluid as it flows through the canals in response to head movements.

Answer: D
 The oval window transmits vibrations from the middle ear to the cochlea, not the semicircular canals or the saccule.

The Semicircular Canals