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Biological: Behavioural genetics · Evolutionary psychology · Neuroanatomy · Neurochemistry · Neuroendocrinology · Neuroscience · Psychoneuroimmunology · Physiological Psychology · Psychopharmacology (Index, Outline)
Brain: Lateral vestibulospinal tract | ||
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Vestibulospinal tract is 2c, in red at bottom center. | ||
Diagram of the principal fasciculi of the spinal cord. | ||
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MeSH | [1] |
The lateral vestibulospinal tract is one of the descending spinal tracts of the ventromedial pathway.
The lateral part of the vestibulospinal tract is the major portion and is composed of fibers originating in the lateral, superior, and inferior vestibular nuclei (primarily the lateral). It projects ipsilaterally down to the lumbar region of the spinal cord. There it helps to maintain an upright and balanced posture by stimulating extensor motor neurons in the legs. It also innervates muscles of the trunk, thus additionally aiding in body posture. The lateral vestibular nuclei receive input from cerebellum, particularly the vestibulocerebellum, or the flocculi and nodulus. The cerebellum aids in coordinating postural adjustments.
See also[]
Brain and spinal cord: neural tracts and fasciculi | |||||||||||||||
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Sensory/ ascending |
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Motor/ descending |
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Cerebellar |
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Auditory and vestibular pathways | ||||
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Auditory |
inner ear: Hair cells → Spiral ganglion → Cochlear nerve VIII → pons: Cochlear nuclei (Anterior, Dorsal) → Trapezoid body → Superior olivary nuclei → midbrain: Lateral lemniscus → Inferior colliculi → | |||
Vestibular |
inner ear: Vestibular nerve VIII → pons: Vestibular nuclei (Medial vestibular nucleus, Lateral vestibular nucleus) cerebellum: Flocculonodular lobe spinal cord: Vestibulospinal tract (Medial vestibulospinal tract, Lateral vestibulospinal tract) | |||
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