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Distal proximal rule applies also here 37 knes 462 fk

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Unformatted text preview: l muscles (from medial vestibular nucleus) – Or to distal muscles (from lateral vestibular nucleus) proximal ---run contralaterally. • Distal – proximal rule applies also here! 37 KNES 462 ©FK ‘08 Vestibular System - synopsis • Vestibular fibers from otolith organs / semicircular canals have high firing rate very suitable for coding excitation / inhibition! • mirror arrangement on both sides of the head helps to sharpen the signal by providing redundancy. ‘push-pull’ mechanism • cranial nerve VIII projects to the vestibular nucleus in the brainstem – vestibular nucleus has specialized sub-regions – receives input from opposite vn, from cerebellum, visual and somatosensory system. – Projects to spinal cord via medial and lateral pathways. 38 KNES 462 ©FK ‘08 4...
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