MICROANATOMY

Detailed explanation-1: -Whereas the otolith organs are primarily concerned with translational movements, the semicircular canals sense head rotations, arising either from self-induced movements or from angular accelerations of the head imparted by external forces.

Detailed explanation-2: -The semicircular canals are three tiny, fluid-filled tubes in the inner ear that help you keep your balance. When your head moves around, the liquid inside the semicircular canals sloshes around and moves the tiny hairs that line each canal.

Detailed explanation-3: -The semicircular ducts work in pairs to detect head movements (angular acceleration).

Detailed explanation-4: -The three semicircular canals of the bony labyrinth are designated according to their position: superior, horizontal, and posterior. The superior and posterior canals are in diagonal vertical planes that intersect at right angles. Each canal has an expanded end, the ampulla, which opens into the vestibule.

Detailed explanation-5: -Because the three semicircular canals-superior, posterior, and horizontal-are positioned at right angles to one another, they are able to detect movements in three-dimensional space.