Vestibular System

**Definition:** The VESTIBULAR APPARATUS in the inner ear, the eye, the CENTRAL NERVOUS SYSTEM and various nerves, tracts and nuclei connecting them as they relate to PROPRIOCEPTION and SPATIAL ORIENTATION. Dysfunction in the vestibular system is associated with various diseases (e.g., VESTIBULAR DISEASES; LABYRINTH DISEASES; VESTIBULAR NEURONITIS; BENIGN PAROXYSMAL POSITIONAL VERTIGO; and MOTION SICKNESS).

**Tree numbers:** - A09.923