vestibular system


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vestibular system

n
(Physiology) the sensory mechanism in the inner ear that detects movement of the head and helps to control balance

vestibular system

The part of the inner ear dealing with balance. It includes two sacs (saccule and utricle) containing gravity-sensitive otoliths, and three fluid-filled semicircular ducts which register movement.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.vestibular system - organs mediating the labyrinthine sense; concerned with equilibrium
ear - the sense organ for hearing and equilibrium
semicircular canal - one of three tube loops filled with fluid and in planes nearly at right angles with one another; concerned with equilibrium
sensory system - the body's system of sense organs
References in periodicals archive ?
Reorganized, this edition has four new chapters: outer and middle ear assessment, with a new section on otoscopy, more on the use of different immittance probe-tone frequencies, and a section on the use of wideband acoustic immittance; evoked physiological responses, with more information and examples on the use of otoacoustic emissions, auditory brainstem responses, and auditory steady-state responses for assessing neural pathologies and auditory sensitivity; implantable devices; and the vestibular system.
They found that the inner ears of living cheetahs differ markedly from those of all other felids alive today, with a greater overall volume of the vestibular system and longer anterior and posterior semicircular canals.
In the vestibular system, Otop1 is necessary for the formation and function of structures called otoconia, which are calcium carbonate crystals that sense gravity and acceleration.
14] Hence, the hair cells and the central vestibular system are sensitive to diabetes mellitus secondary changes, particularly small changes in blood glucose and insulin in plasma.
The vestibular system consists of a complex sensory organisation that involves communication between the central and peripheral vestibular systems as well as the ocular system, the postural muscles, the brainstem and the cerebellum to regulate and control balance and sense of motion.
Vestibular system is connected with hippocampus, raphe nucleus, locus coeruleus, thalamus, amygdala, insular cortex, anterior cingulated cortex, prefrontal cortex, cerebellum, occipital cortex, putamen, parietal lobe and other areas of brain [8] and plays a major role in relieving stress, cancer pain, promotes sleep, improves immunity, improves cognition, and also treats endocrine disorders.
Magnetic resonance imaging (MRI) showed a destructive and locally invasive tumor in the peripheral vestibular system expanding into the cerebellopontine angle.
org/wiki/Vestibulo%E2%80%93ocular_reflex) vestibulo6ocular reflex  is a well-known automatic effect linking eye movements to changes in the vestibular system.
Because the vestibular system has a very complex structure and there is no single test that can examine the entire vestibular system, clinicians must perform many vestibular tests and interpret the results accurately and reach the correct diagnosis by combining them with the findings of patients.
This theory purports that the firing rate of the neurons in the canals of the vestibular system exert a heavy metabolic load, a damaging cascade that could lead to oxidative stress (free radicals) and to dysfunctional central and/or peripheral function.
The vestibular system processes sensory information about equilibrium, motion, and spatial orientation.