In a broad sense, the phrase “vestibular system” refers to the integration of multiple sensory inputs (inner ear, vision, somatic sensation) and orchestration of multiple outputs (ocular motor, somatomotor) for purposes of movement (such as locomotion) and maintaining balance and posture. Given the multiple inputs and multiple outputs involved, it is understandable that the vestibular system (in this broad sense) involves a wide range of neuroanatomical pathways. In a narrower sense, “vestibular system” can refer to the process by which type 1 vestibular hair cells in the inner ear’s labyrinth transduce acceleration (whether rotational or translational) into electrochemical signals.