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Vestibular system
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===Projection pathways=== [[File:Vestibular balance system.jpg|thumb|[[Neural pathway]] of the vestibular system]] The vestibular nuclei on either side of the brainstem exchange signals regarding movement and body position. These signals are sent down the following projection pathways. # To the [[cerebellum]]. Signals sent to the cerebellum are relayed back as muscle movements of the head, eyes, and posture. # To nuclei of cranial nerves [[Oculomotor nerve|III]], [[Trochlear nerve|IV]], and [[Abducens nerve|VI]]. Signals sent to these nerves cause the vestibular-ocular reflex. They allow the eyes to fix on a moving object while staying in focus. # To the [[reticular formation]]. Signals sent to the reticular formation signal the new posture the body has taken on, and how to adjust circulation and breathing due to body position. # To the [[spinal cord]]. Signals sent to the spinal cord allow quick reflex reactions to both the limbs and trunk to regain balance. # To the [[thalamus]]. Signals sent to the thalamus allow for head and body motor control as well as being conscious of body position.<ref name="Saladin 2011">{{cite book |author=Saladin, Kenneth S. |title=Anatomy & Physiology: The Unity of Form and Function |publisher=McGraw-Hill |location=New York |year=2011 |isbn=978-0-07-337825-1 |oclc=799004854 }}</ref>
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