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Vestibular system information


Neural pathway of vestibular/balance system

The vestibular system, in vertebrates, is a sensory system that creates the sense of balance and spatial orientation for the purpose of coordinating movement with balance. Together with the cochlea, a part of the auditory system, it constitutes the labyrinth of the inner ear in most mammals.

As movements consist of rotations and translations, the vestibular system comprises two components: the semicircular canals, which indicate rotational movements; and the otoliths, which indicate linear accelerations. The vestibular system sends signals primarily to the neural structures that control eye movement; these provide the anatomical basis of the vestibulo-ocular reflex, which is required for clear vision. Signals are also sent to the muscles that keep an animal upright and in general control posture; these provide the anatomical means required to enable an animal to maintain its desired position in space.

The brain uses information from the vestibular system in the head and from proprioception throughout the body to enable the animal to understand its body's dynamics and kinematics (including its position and acceleration) from moment to moment. How these two perceptive sources are integrated to provide the underlying structure of the sensorium is unknown.

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Vestibular system

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The vestibular system, in vertebrates, is a sensory system that creates the sense of balance and spatial orientation for the purpose of coordinating movement...

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Vestibular rehabilitation

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Vestibular rehabilitation (VR), also known as vestibular rehabilitation therapy (VRT), is a specialized form of physical therapy used to treat vestibular...

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Labyrinthitis

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maze of fluid-filled channels in the inner ear. Vestibular neuritis is inflammation of the vestibular nerve (the nerve in the inner ear that sends messages...

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Inner ear

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impulses which are passed on to the brain via the auditory nerve. The vestibular system, dedicated to balance. The inner ear is found in all vertebrates,...

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Vertigo

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or aspirin. Vertigo typically indicates a problem in a part of the vestibular system. Other causes of dizziness include presyncope, disequilibrium, and...

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Sensory illusions in aviation

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instrument readings or the misjudging of altitude over water. The vestibular system, which is responsible for the sense of balance in humans, consists...

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Sense

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(interoception) sensory systems. Human external senses are based on the sensory organs of the eyes, ears, skin, nose, mouth and the vestibular system. Internal sensation...

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Vestibular nerve

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The vestibular nerve is one of the two branches of the vestibulocochlear nerve (the cochlear nerve being the other). In humans the vestibular nerve transmits...

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Vestibular evoked myogenic potential

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utricule and superior vestibular nerve and the cVemp measures the saccule and the inferior vestibular nerve. The vestibular system helps a person maintain:...

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Spatial disorientation

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sense for orientation. The auditory system, vestibular system (within the inner ear), and proprioceptive system (sensory receptors located in the skin...

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Extrapyramidal system

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parts of the central nervous system, including the nigrostriatal pathway, the basal ganglia, the cerebellum, the vestibular nuclei, and different sensory...

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Sense of balance

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the result of a number of sensory systems working together; the eyes (visual system), the inner ears (vestibular system), and the body's sense of where...

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Vestibular nuclei

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The vestibular nuclei (VN) are the cranial nuclei for the vestibular nerve located in the brainstem. In Terminologia Anatomica, they are grouped in both...

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Righting reflex

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taken out of its normal upright position. It is initiated by the vestibular system, which detects that the body is not erect and causes the head to move...

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Balance disorder

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Balance is the result of several body systems working together: the visual system (eyes), vestibular system (ears) and proprioception (the body's sense...

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Critical period

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periods have been identified for the development of hearing and the vestibular system.[1] Examples of strong critical periods include monocular deprivation...

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Vestibulocochlear nerve

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The vestibulocochlear nerve or auditory vestibular nerve, also known as the eighth cranial nerve, cranial nerve VIII, or simply CN VIII, is a cranial nerve...

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Sopite syndrome

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mismatch between the visual, vestibular, and somatosensory systems. Motion studies in which the subjects lacked vestibular systems did not experience symptoms...

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Saccule

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impulses travel along the vestibular portion of the eighth cranial nerve to the vestibular nuclei in the brainstem. The vestibular system is important in maintaining...

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Vestibular schwannoma

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A vestibular schwannoma (VS), also called acoustic neuroma, is a benign tumor that develops on the vestibulocochlear nerve that passes from the inner ear...

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Hair cell

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Hair cells are the sensory receptors of both the auditory system and the vestibular system in the ears of all vertebrates, and in the lateral line organ...

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Vestibular cortex

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Vestibular cortex is the portion of the cerebrum which responds to input from the vestibular system. The location is not well defined, but some research...

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Motion simulator

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the real world. The vestibular system is the balance and equilibrium system of the body that includes the left and right vestibular organs of the "inner...

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Biological system

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systems: visual system, auditory system, olfactory system, gustatory system, somatosensory system, vestibular system. Muscular system: allows for manipulation...

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Oscillopsia

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oculomotor system is affected, no longer holding images steady on the retina. A change in the magnitude of the vestibulo-ocular reflex due to vestibular disease...

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Graveyard spiral

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contains the vestibular system, which is also known as the organ of equilibrium. About the size of a pencil eraser, the vestibular system contains two...

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Motion sickness

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arriving in the brain from the inner ear, which forms the base of the vestibular system, the sensory apparatus that deals with movement and balance, and which...

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Flocculus

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structures compose the vestibular part of the cerebellum. At its base, the flocculus receives input from the inner ear's vestibular system and regulates balance...

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