lateral vestibulospinal tract

(redirected from vestibulospinal)

lateral ves·tib·u·lo·spi·nal tract

a somatopically organized fiber bundle originating from the lateral vestibular nucleus (nucleus of Deiters), which descends uncrossed into the anterior funiculus of the spinal cord lateral to the anterior median fissure; the tractus extends throughout the length of the cord, distributing fibers at all levels to the medial part of the anterior horn. Excitatory impulses conveyed by the vestibulospinal tract increase extensor muscle tone.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
VR consists of a set of exercises aimed at stimulation of the vestibulocochlear, vestibulocervical and vestibulospinal reflexes to accelerate the functional balance recovery process [9].
Information from the vestibular system and their central pathways is integrated with visual and proprioceptive afferent nerve potentials to obtain gaze stabilization and postural stability via the vestibulo-ocular and vestibulospinal reflexes, respectively.
Similarly, in his retrospective study, Jung has obtained findings that reflect vestibulospinal abnormalities in the VM patient group in dynamic posturography (29).
Two balanced descending systems are controlling stretch reflex activity: the inhibitory dorsal reticulospinal tract and facilitatory medial reticulospinal tract and vestibulospinal tract.
The vestibulospinal exercises included static balance with progressive reduction of the support base, eyes open and closed, and firm to soft surface.
Specifically, cervical vestibular evoked myogenic potentials (cVEMPs) represent the sternocleidomastoid (SCM) muscle response to sound activation of saccule and signal transmission via the vestibulospinal tract.
The reduction from corticospinal control signals results in an increased dependence on residual brainstem descending pathways (such as vestibulospinal, reticulospinal, and rectospinal pathways) [22], which may activate extensive branching and innervate more neurons over spinal segments.
The symptoms in BVP are caused by the sensory vestibular impairment leading to insufficent vestibulospinal reflexes.
Galvanic vestibular stimulation (GVS) is not just used in analyzing neuroadaptive behaviors of the vestibulospinal system but also in treating several vertigo related disorders.
Moreover, the reduction of the tonic drive of vestibulospinal volleys in microgravity could influence the muscle tropism.
The CV receives somatic sensory information from the spinal cord and via the vestibulospinal tract or reticular nuclei of the brainstem through the spinal cord, connecting indirectly or directly with motor cells on the ventral horn.