AP PSYCHOLOGY

Detailed explanation-1: -vestibular sense. The sense of body movement and position, including the sense of balance is detected by small vestibular sacs that are in the semicircular canals.

Detailed explanation-2: -The semicircular canals of the vertebrate inner ear, located within the petrous part of the temporal bone of the skull, are responsible for sensing angular accelerations and decelerations of the head.

Detailed explanation-3: -The semicircular canals are posterior and lateral to the vestibule. Cavities of the bony semicircular canals are projected from the posterior aspect of the vestibule. Each of them is arranged in one of three planes. Therefore, there is an anterior, posterior, and a lateral semicircular canal in each internal ear.

Detailed explanation-4: -The vestibular system functions to detect head motion and position relative to gravity and is primarily involved in the fine control of visual gaze, posture, orthostasis, spatial orientation, and navigation.