The Vestibular System

Provides information:

1. Head linear acceleration
2. Angular acceleration (Head rotations)
3. Head position (antigravity muscles)

Maintain balance (posture & equilibrium) by monitoring motion of the head

Stabilize the eyes relative to the environment

Important:

In quiet standing posture, the vestibular system don’t interfere with posture stability and balance.

1. No acceleration = no vestibule signal
2. No eye movement = no vestibule signal (spatial orientation)