Every time we move our heads, it is registered by the organ of balance, which is located in the internal ear close to the cochlea. Subsequently, fluid in three canals moves, affecting fine sensory hairs, and the brain is informed. The importance of balance in connection with our movements can be felt, if you experience balance problems, such as neuritis vestibularis, which might cause severe dizziness, nausea, and vomiting.
When the head is level, the sensory hairs, which 1 are affixed to the hair cells, are also vertical. The hair cells are in three fluid-filled canals, perpendicular to each other. One for the head being bent back and forth, one with the ear leaning towards the shoulder, and one with us shaking our head.
When we bend our head, gravity will make a 2 gel membrane located between the fluid-filled canal and the sensory hairs move. It pushes the sensory hairs and the hair cells, which subsequently send nerve signals in the direction of the brain about the position and motion of the head.