Naked Science Forum

Life Sciences => Physiology & Medicine => Topic started by: qazibasit on 11/06/2005 11:22:56

Title: what is the Vestibular System ?
Post by: qazibasit on 11/06/2005 11:22:56

what do you mean by vestibular nucleus (i am not talking about vestibular apparatus of ear).

Title: Re: what is the Vestibular System ?
Post by: chris on 13/06/2005 12:58:53

The vestibular system (within the inner ear) transmits information to the brainstem via a series of bipolar (two-ended) nerve fibres. These terminate within the brainstem's medulla oblongata within the 4 vestibular nuclei on each side (Inf / Sup / Med / Lat), from where the information is integrated and relayed centrally (the the vestibular cortex), to the cerebellum, and (as the vestibulo-spinal tracts) to motor neurones in the spinal cord, and (via the MLF - medial longitudinal fasciculus) to the oculo-motor nuclei (which is how the vestibulo-ocular reflex is generated).

Chris

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