Final answer:
The vestibular system consists of the utricle, saccule, and three semicircular canals, which work together to maintain a person's sense of balance. These parts detect and measure head orientation, movement, and changes. Signals from the vestibular system are sent to different brain regions to coordinate balance and movement.
Step-by-step explanation:
The vestibular system consists of five parts that work together to maintain a person's sense of balance. These parts include the utricle, saccule, and the three semicircular canals. The utricle and saccule help measure head orientation by shifting their calcium carbonate crystals when the head is tilted, while the semicircular canals detect changes in head movement. The vestibular system sends signals to various regions of the brain, including the thalamus, somatosensory cortex, and cerebellum, to coordinate balance and movement.