ANATOMY

Detailed explanation-1: -The semicircular ducts, or canals, play a crucial role in detecting the head’s rotational position. Inertia causes the endolymph to move slower than the head, encouraging the cells of hair to produce signals essential for stabilising and regulating body posture.

Detailed explanation-2: -Your semicircular canals are three tiny, fluid-filled tubes in your 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: -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-4: -The semicircular ducts work in pairs to detect head movements (angular acceleration). A turn of the head excites the receptors in one ampulla and inhibits receptors in the ampulla on the other side.

Detailed explanation-5: -… inner ear, or labyrinth: the semicircular canals, which respond to rotational movements (angular acceleration); and the utricle and saccule within the vestibule, which respond to changes in the position of the head with respect to gravity (linear acceleration).