Rotation of the Head in the Horizontal Plane Excites

Question

Rotation of the head in the horizontal plane excites
A) hair cells in the utricle
B) hair cells in the posterior canal
C) hair cells in the antrerior canal
D) hair cells in the horizontal canal
E) hair cells in the saccule

Accepted Answer

Rotation of the head in the horizontal plane primarily excites the hair cells in the horizontal (or lateral) semicircular canal. This is because the horizontal canal is oriented in such a way that it is most sensitive to movements in the horizontal plane, such as turning the head to the left or right.