Posterior semicircular canal

The posterior semicircular canal is one of three tiny, loop-shaped structures in the inner ear that help us maintain balance and detect head movements. Positioned at an angle, it specifically senses rotational movements when you tilt or turn your head sideways or backward. Filled with fluid and lined with sensitive hair cells, it detects changes in motion by how the fluid moves within the canal. This information is then sent to the brain to help coordinate your balance and spatial orientation, making sure your movements feel natural and coordinated.